Science

WTF Fun Fact 13159 – You Can Be Right-Eared or Left-Eared

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Just as you can be right-handed or left-handed, you can be right- or left-eared and eyed. We not only favor one side, but it also works better. (Even those of us who are ambidextrous usually still favor one side.)

Gauging your earliness

When you talk on the phone, do you tend to hold it mostly to one ear? How about if you’re eavesdropping – do you press that same ear to the door?

According to KIND (cited below), a research study in 1998 at the University of Dresden used data from 300 students after asking subjects to “listen for a stopwatch on the table or a soft voice, listen at a door and make a phone call.”

62% of people were right-eared (and 84% of the total were left-handed). That means your dominant ear could be the opposite of what you might expect.

21% of the study subjects were left-eared while 17% showed no preference. So there’s a decent change you don’t have a dominant ear. However, if you hold a telephone up to your ear, you may be likely to have a preferential ear and it’s likely to be on the same side as your dominant hand (which you would typically use to hold a phone).

Laterality

A preference for a certain side of the body is known as laterality. And it can refer to eyes and even legs.

Next time you step off a curb (or even begin your stride) or move one eye closer to something you’re trying to read, pay attention to what side of your body it’s on. It may tell you something interesting (although not terrible insightful about your personality).

It may even be able to tell you something about your health. For example, studies have shown that some eye diseases are more likely to occur in the dominant eye. —WTF fun facts

Source: “Earliness: Understanding your better ear” — KIND

WTF Fun Fact 13149 – Spiders Recycle Their Webs

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Not all spider webs are destroyed with a broom. In fact, spiders can recycle their webs by eating them!

How and why do spiders recycle their webs?

Some spider webs are built to last years while others only last a day or so. Of course, while those beautifully spun webs in the corner of your attic may have been built as a long-term home for the spider, in that case, their duration is influenced by how long humans allow them to stick around.

But for some neglected spider webs, they can be so enduring that a new generation of spiders might come to reside there.

More fragile webs may only last a day because spiders build them simply to catch food. Rain and pollen may affect their stickiness. In these cases, spiders will pack up a web for the day and build again the next. When this happens, spiders often eat their webs to recycle the amino acids that made up the silk protein used in web construction.

It’s an impressive feat since webs can consist of 65 feet of silk!

Not all spiders ingest their silk though. And some use it to wrap their eggs sacs. But considering how much energy it takes to weave a web, it’s not all that surprising that spiders recycle webs by eating them in some cases.

Spider web building

Spider web silk is made out of protein chains. And some of it is as strong as kevlar (though obviously it’s not as tightly woven, so we hardly notice when batting them away). In fact, scientists are studying it in the hopes of making future body armor!

Spiders typically start building webs by pulling silk from a gland in their fourth leg. The fourth leg on the opposite side contains even more silk glands. Then, in order to begin, the spider (depending on the species) can shoot it out to attach to an object or wait for a breeze to carry it to the base from which it will start building.

From there, the spider will typically create a number of attachment lines. Then they decide which are the strongest and begin weaving from there. Different spiders have different web patterns. In fact, they’re so distinct that experts can look at the structure of a web and tell you precisely which type of spider built it.

—WTF fun facts

Source: “Why do spiders eat their own webs?” — Discover Wildlife

WTF Fun Fact 13133 – Is Aging a Disease?

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Is aging a disease? Well, it depends on how you look at it. It’s a natural process, so in that case, the answer is no. And yet The World Health Organization (WHO) added “aging” as a disease to the 11th edition of their International Classification of Diseases in June of 2018.

Is it fair to say aging is a disease?

In many ways, it may seem silly to call gaining a disease since it’s both universal and natural for all living creatures. However, some types of aging can be seen as pathological because they are sped up and therefore abnormal. (One example is the deterioration of the skin due to UV exposure, which can lead to rapid aging and cancer.)

Aging is also a risk factor for many diseases, such as Alzheimer’s.

But to call aging a disease would be to classify us all as constantly in a state of disease. But you can also argue that aging serves no purpose and then it seems less natural.

What’s in a disease?

Disease is seen as a deviation from the normal (at its most basic). In this sense, aging is completely normal. It may also be desirable since it tends to come with the accumulation of wisdom. However, it’s simply to argue that not every old person brings wisdom into old age.

Those who want to classify aging as a disease don’t necessarily want to valorize the youthful (after all, they have no control over their age) and will someday be old. However, calling aging a disease allows researchers to investigate its causes and, potentially, actions that might stop bodily and cognitive decline that are the hallmarks of aging.

When people die of old age, autopsies show a series of degradations in their bodies that could potentially be stopped. They are the body’s typical reaction to the passage of years, but they represent abnormal cellular functions that lead to the body growing more frail and senile. Those aren’t judgment calls but facts.

But should aging fall outside the scope of medicine? Should doctors stay away from treatments that can help reverse the effects of aging? If it’s not a disease, then technically they should not treat the symptoms.

Aging is harmful to the body no matter how you look at it. And the more we look into it, the more we see there are specific causes related to the body wearing down with age. Should we do nothing about them? If we were to reject age as a disease, then only a few researchers would be able to study it with age-related research funding. Later, only the rich would have access to aging treatments because insurance companies wouldn’t cover aging treatments. That might leave us with a civilization comprised only of the rich. —WTF fun facts

Source: “It is time to classify biological aging as a disease” — Frontiers in Genetics

WTF Fun Fact 13123 – Aquamation

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Alkaline hydrolysis, also known as aquamation or water cremation may be the next frontier in the death industry. Researchers say it’s one of the most sustainable options for treating human remains.

What is aquamation?

In 2021, aquamation became a subject of interest after the death of Archbishop Desmond Tutu, who requested that his remains be disposed of in this eco-conscious manner. Now, it’s a popular choice in the “green burial” movement.

The goal of aquamation is to avoid the use of non-biodegradable materials and promote the natural decomposition of the body. During the process, the body is liquified under pressure. Then, the bones are dried and turned to ashes in an oven. It reduces the need for ostentatious caskets and the greenhouse gases produced by traditional cremation by fire. It also cuts energy use.

Smithsonian Magazine (cited below) explains in more detail:

“During alkaline hydrolysis, a human body is sealed in a long, stainless-steel chamber, while a heated solution of 95 percent water and 5 percent sodium hydroxide passes over and around it…The process dissolves the bonds in the body’s tissues and eventually yields a sterile, liquid combination of amino acids, peptides, salts, sugars and soaps, which is disposed of down the drain at the alkaline hydrolysis facility. The body’s bones are then ground to a fine powder and returned to the deceased person’s survivors, just as the bones that remain after flame cremation are returned to families as ash.”

Choosing a “green burial”

While you may not have heard of water cremation, there are dozens of American companies that build machines for it. It’s legal in at least 26 states as well as throughout the world.

The process itself has been around for a long time, but it’s still not mainstream. However, it’s likely you’ll hear more about it as nearly every industry strives to become more sustainable.

There are states that still ban the practice because of concerns over the effects of residue in the water supply. It appears not to have any negative effect on water, but regulating it is still a challenge since aquamation’s use is still relatively rare.

According to the Berkeley Planning Journal, the chemicals and materials buried along with bodies in conventional American burials “include approximately 30 million board feet of hardwoods, 2,700 tons of copper and bronze, 104,272 tons of steel, and 1,636,000 tons of reinforced concrete.” Fire cremations in America “release an estimated annual 360,000 metric tons of carbon dioxide into the atmosphere, as well as toxic materials like mercury.”

Smithsonian notes that “Alkaline hydrolysis consumes approximately 10 percent of the energy required to cremate a body in flame, its equipment runs on electricity rather than fossil fuels, and it emits no greenhouse gases.”

Once people get over the suspicions that come with novel new burial practices, experts believe the industry will grow. — WTF fun facts

Source: “Could Water Cremation Become the New American Way of Death?” — Smithsonian Magazine

WTF Fun Fact 13122 – The Benefits of Recreational Fear

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It turns out fear isn’t always a bad thing. In fact, recreational fear – the kind of fear you experience on purpose by going to haunted houses or watching horror flicks – can be good for your brain.

Seeking out recreational fear

We know some fear can create a stress response in the body that can be harmful. But our body’s ability to feel fear is, overall, a good thing. It tells us to get away from danger and keeps us alive.

But what about the people who seek out fear?

Even a game of peek-a-boo as a baby starts to prime our bodies for being caught off guard. And it can be exhilarating. When we get a little older, we may tell ghost stories around the campfire. In many ways, we seek out fear. As adults, we may go on roller coasters, see slasher or suspense films, or participate in risky activities like mountain biking or skydiving.

But why do we go after this feeling?

According to Smithsonian Magazine (cited below), “One hypothesis is that recreational fear is a form of play behavior, which is widespread in the animal kingdom and ubiquitous among humans. When an organism plays, it learns important skills and develops strategies for survival.”

The benefits of fear

By seeking out recreational fear, we put ourselves in a situation that has little risk. And perhaps scaring ourselves in a controlled situation can help us cope with real fear later on.

You can learn a lot about yourself by the way you react to fear. It’s just that not many of us like to acknowledge that feeling or explore it.

Researchers at the Recreational Fear Lab, a research center at Aarhus University, Denmark are looking into the science of fear and trying to learn more about our responses to stress. One thing they’re looking at is the relationship between fear and enjoyment. After all, some people really seem to go after scary experiences in order to hit a “sweet spot” between boring and terrifying.

The question of what makes recreational fear appealing to some is still up for debate. But researchers suspect that “even though fear itself may be unpleasant, recreational fear is not only fun—it may be good for us.”

One suggestion is to not be so afraid of fear, especially when you can control the parameters.

“With research findings such as these in mind, we should maybe think twice about shielding kids and young people too zealously from playful forms of fear.” — WTF fun facts

Source: “Can Experiencing Horror Help Your Brain?” — Smithsonian Magazine

WTF Fun Fact 13121 – Nightmare Disorder

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Chances are you’ve had at least one nightmare before – and perhaps even one bad enough to wake you up from your slumber. While nightmares are common, nightmare disorder is (luckily) not.

What is nightmare disorder?

According to the Mayo Clinic (cited below), “Nightmare disorder is when nightmares happen often, cause distress, disrupt sleep, cause problems with daytime functioning or create fear of going to sleep.”

Sounds stressful!

For those with the disorder, the bad dreams ten to occur in the second half of the sleep cycle. And while they’re brief, they’re bad enough to wake you up and cause enough anxiety to prevent you from getting back to sleep. You may even experience a slowly unfolding nightmare that gets worse as it continues or one that causes you to suffer from palpitations.

This disorder is only diagnosed in people who have frequent enough nightmares that it interferes with their normal days due to distress or lack of sleep. In children, it can lead to a fear of the dark or behavioral problems.

Music for nightmares

According to Smithsonian Magazine, there is new hope for sufferers of nightmare disorder, who may number somewhere between 10 million in the U.S. alone.

A study showed those people might be able to take charge of their dreams and change their tone using music.

“Sounds played during sleep may reduce the frequency of nightmares and promote positive emotions that can help lead to a better slumber. Existing therapies coach sleepers to imagine and rehearse alternate happy endings to their nightmares before bed, a practice known to significantly reduce bad dreams. Now, Swiss scientists aim to supercharge this idea by associating those happy endings with an audio cue that will trigger them during sleep. When nightmare disorder sufferers listened to a piano chord while they practiced imagining a good dream, then heard that same chord while they were in REM sleep, bad dreams were frequently kept at bay.”

This is called imagery rehearsal therapy (IRT), and it’s a cognitive-behavioral technique that only takes about 5 or 10 minutes a day. — WTF fun facts

Source: “Nightmare Disorder” — Mayo Clinic

WTF Fun Fact 13119 – Greenland’s Ecosystem Surprise

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Evidence from the oldest DNA ever analyzed indicates that northern Greenland used to be a lush wonderland where mastodons, reindeer, geese, and hares once lived among a wide array of trees and other greenery. Greenland’s ecosystem surprise was reported in the journal Science in December 2022.

Why is ancient Greenland’s ecosystem such a surprise?

Today, Greenland’s ecosystem is far less varied thanks to its extreme Arctic climate. While you will find moss, lichen, small trees, and bushes in the tundra, it’s still largely considered an Arctic desert.

According to Eske Willerslev, a paleogeneticist at the University of Cambridge and a co-author of the study,

“No one would have predicted an ecosystem like this. Some species you find further south in Greenland, but a number you don’t find in the Arctic at all. It’s an ecosystem with no analog in the present day.”

Ancient DNA

According to Science (cited below), the insights into Greenland’s ancient past “come from the oldest DNA ever recovered: 2-million-year-old snippets of genetic material from more than 100 kinds of animals and plants, extracted from buried sediments.”

So not only is the information about Greenland’s ecosystem special, but the ability to use short and partially decayed DNA from millions of years ago is an exciting development.

According to Smithsonian Magazine, “Beyond evidence of reindeer, geese and one mastodon, [the researchers] also found signs of marine species, including horseshoe crabs and green algae. In this era of the island’s geologic history, temperatures were around 18 to 31 degrees Fahrenheit warmer than they are in Greenland today.”

Needless to say, scientists are excited about the finds.

“I wouldn’t have, in a million years, expected to find mastodons in northern Greenland,” said Love Dalen, a paleogeneticist at Stockholm University in Sweden.

“It feels almost magical to be able to infer such a complete picture of an ancient ecosystem from tiny fragments of preserved DNA,” said Beth Shapiro, an evolutionary biologist at the University of California, Santa Cruz. — WTF fun facts

Source: “Lost world in northern Greenland conjured from DNA in ancient soil” — Science

WTF Fun Fact 13116 – Pigeons Can Tell the Difference Between Monet and Picasso

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If you try hard enough, anything is possible. But it turns out training pigeons to discriminate between a Picasso and a Monet isn’t actually all that hard. Pigeons can tell the difference between the two artists with relatively little effort (at least relative to what we would have imagined).

Pigeons and Picasso and Monet

In 1995, researchers Shigeru Watanabe, Junko Sakamoto, and Masumi Wakita published a paper called “Pigeons’ discrimination of paintings by Monet and Picasso” in the Journal of the Experimental Analysis of Behavior. In it, they showed:

“Pigeons successfully learned to discriminate color slides of paintings by Monet and Picasso. Following this training, they discriminated novel paintings by Monet and Picasso that had never been presented during the discrimination training. Furthermore, they showed generalization from Monet’s to Cezanne’s and Renoir’s paintings or from Picasso’s to Braque’s and Matisse’s paintings. These results suggest that pigeons’ behavior can be controlled by complex visual stimuli in ways that suggest categorization. Upside-down images of Monet’s paintings disrupted the discrimination, whereas inverted images of Picasso’s did not. This result may indicate that the pigeons’ behavior was controlled by objects depicted in impressionists’ paintings but was not controlled by objects in cubists’ paintings.”

Birds and bees

Later on, in 2013, behavioral scientists showed that honeybees could also discriminate between paintings by the two artists.

Perhaps more hilariously, a 2010 article in the journal Animal Cognition showed that “Pigeons can discriminate “good” and “bad” paintings by children.” Imagine a pigeon letting your child know their art is “bad.”

Wonder how it was done? In the words of the researcher:

“In this study, I investigated whether pigeons could be trained to discriminate between paintings that had been judged by humans as either ‘bad’ or ‘good’. To do this, adult human observers first classified several children’s paintings as either ‘good’ (beautiful) or ‘bad’ (ugly). Using operant conditioning procedures, pigeons were then reinforced for pecking at ‘good’ paintings. After the pigeons learned the discrimination task, they were presented with novel pictures of both ‘good’ and ‘bad’ children’s paintings to test whether they had successfully learned to discriminate between these two stimulus categories. The results showed that pigeons could discriminate novel ‘good’ and ‘bad’ paintings.”

Who knew nature had such art critics?! — WTF fun facts

Source: “Pigeons’ discrimination of paintings by Monet and Picasso” — Journal of the Experimental Analysis of Behavior

WTF Fun Fact 13106 – Children of Identical Twins

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Is your biological parent an identical twin? If so, you and your cousins might have a lot more in common than you realize. The children of identical twins are as genetically similar as a half-sibling would be.

Research on the children of identical twins

Like identical twins themselves, the children of identical twins provide researchers with great insight into how children develop. In fact, the University of Minnesota helps fun a “Children of Twins Study” to look at ” – like the twins themLike for their twin parents, there are many fascinating family relationships for the children of twins–when identical twins have children, their children are cousins but genetically as similar as half-siblings. The Children of Twins (CoT) study examines “psychopathology, psychosocial functioning, neurocognitive functioning, and brain structure and functioning in a sample of 176 substance-naïve children of twin parents…without a history of problematic substance use.”

According to their website, they are also “in the process of completing a neuroimaging assessment with the twin parents of children in the CoT study, which will yield the first (to our knowledge) comparable imaging assessment in twin parents and their children and will allow us to examine whether brain deviations associated with problematic substance use in adults are also observable in their young children prior to substance initiation.”

Twinning

Cousins whose parents are identical twins share will have 25% of their DNA in common (as opposed to 12.5%). (Full siblings share 50% of their DNA.)

In rare cases when sets of identical twins marry other sets of twins, their children are genetically full siblings. They’re called “quaternary twins” and are incredibly rare. Of course, a person’s environment and other causes of genetic mutation can change their phenotype (the expression of the genes). — WTF fun facts

Source: “Children of Twins (CoT) Study” — University of Minnesota, Family Cognitive Affective Neurodevelopment Lab

WTF Fun Fact 13104 – Pandemic Influences on Animals

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While the pandemic was a catastrophe for humans, many wild animal populations flourished without us around. Of course, this wasn’t always ideal for their ecosystems, but scientists are still trying to understand that. Nearly all researchers who were in the middle of field research on animal populations (or even those displayed in zoos and aquariums) are in the process of studying the precise nature of pandemic influences on animals.

The “anthropause”

Scientists have suggested that the period at the height of the pandemic be called the “anthropause.” That’s because at the height of the pandemic, humans weren’t around in many places to disturb animal populations.

Researchers are interested in studying this moment in time to see how wildlife adapted to our absence. The COVID pandemic provided a unique opportunity to see how the absence of things like noise, pollution from traffic, and tourism affect animal populations.

What were some pandemic influences on animals?

We don’t yet know the full effects of the pandemic and its “anthropause” on animals, since the world is only recently revving up again. But researchers can look at data from tracking devices, cameras, and sensors to see how things were different in 2020 and 2021.

Accoring to Science Magazing (cited below): “The International Bio-Logging Society, for example, is coordinating a large effort to assess how reduced vehicle, ship, and aircraft traffic is affecting animal behavior. More than 300 researchers have indicated they have relevant animal tracking data from 180 species of birds, mammals, reptiles, fish, and sharks across almost 300 study populations from all continents and oceans.”

It’s data that one researcher called “a gold mine.”

But other scientists that had to halt their research during the pandemic need to completely rethink their approaches. The pandemic pause needs to be factored into any historical data that included the pandemic years.

What did wildlife do during the pandemic?

As for the data collected during the pandemic, scientists are seeing some interesting things. More animals wandered around in the daytime. Some are now less active than they were before the pandemic. Cities saw some rare animals wander into their limits.

It all leaves more questions than answers.

But some new studies have popped up in response to the lack of humans around wildlife. For example, animal experts are looking at the effects of a lack of tourism on the diet and health of animals that were once fed by human visitors.

In the end, it may help us figure out how to regulate tourism in order to best help vulnerable species. — WTF fun facts

Source: “The pandemic stilled human activity. What did this ‘anthropause’ mean for wildlife?” — Science

WTF Fun Fact 13091 – Scent Makes Dogs Feel Safe

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You probably already know your dog is happy to be around you. They’re pretty good at showing it. Your behavior towards your dog is what matters most. But once they feel secure in your presence, your scent makes dogs feel safe.

The research on scent making dogs feel safe

Have you ever smelled a scent that reminded you of someone (perfume, for example) and had it stir your emotions?

Gregory Berns, a neuroeconomist at Emory University, performed functional magnetic resonance imaging (fMRI) on dogs (don’t worry, he taught them to sit still).

“We started the dog project about three years ago to get around this problem that we really don’t know what dogs are thinking or what they’re experiencing,” Berns said, according to National Geographic (cited below).

The goal was to see the activity of the brain’s nerve cells in order to get a hint of what they might be thinking. Of course, there’s a lot of interpretation to do to turn those images into ideas about doggy feelings. But they studied the part of the brain that is associated with reward.

According to NatGeo: “In the new study, Berns and his team performed fMRI on 12 dogs, including 5 service or therapy dogs and his own dog, Callie, to test their response to biological odors. The experiment dogs were presented with five scents on gauze pads: a familiar human, an unfamiliar human, a dog that lived in their household, an unfamiliar dog, and their own scent. The researchers found that the dogs’ caudate nucleus, an area of the brain associated with positive expectations, was most activated by the scent of the familiar person.”

The scent of a dog owner

The results suggested that dogs can pick out their owner’s familiar scent, AND it tends to produce a positive reaction that shows up in the reward center of the brain.

The dogs didn’t react to the other scents in any way that would indicate they had an emotional reaction to them.

While this is sweet and all, the research will be beneficial for service animals.

“What’s more, scanning potential service dogs for enhanced brain responses may pinpoint canines that are most up to the task. Training service dogs is very expensive, he said, and only 30 to 40 percent of those trained are placed with a person. Overall, Berns believes the dogs experience something akin to pleasure when they smell their owners.” — WTF fun facts

Source: “Dog Brains Link Pleasure With Owner’s Scent” — National Geographic

WTF Fun Fact 13089 – The Benefits of Looking at Old Photos

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From physical photo albums to scrolling far back in your social media history, there’s something about looking at old photos that tends to make us happy. In fact, research has shown it can be downright relaxing. For those not skilled at meditation, looking at old photos can be even more relaxing than meditating!

Make yourself happy by looking at old photos

Make fun of photo-takers all you’d like (and we’ll join you for the ridiculous Instagram posers), but there’s some serious value in documenting happy moments.

In an article posted about the research on Digital Camera World (cited below), UK behavioral psychologist Jo Hemmings noted that “Taking the time to look back on our treasured memories can be truly beneficial for our wellbeing as it can help to evoke feelings of positivity and happiness. Because of this, and especially at times like this, we should take more time to appreciate and look back on them.”

Reminiscing for stress relief

If you want to crush your stress and boost your well-being, try a few tips that have made people happy during research studies:

  • Check out old photos of your friends, family, and pets on your phone. It can trigger feelings of happiness and strengthen these relationships.
  • Look at photos when you need a reminder that you’re loved. Reminiscing about happy moments with a photo helps recreate those feelings in our minds and transports us back to a happier place.
  • Make an album of funny photos. Silly old photos can cause your body to release endorphins, a natural stress reliever.
  • Look back at other people’s happy occasions. When we see our friends and family at significant points in their lives (weddings, graduations, etc.), it can help reduce cortisol and take our anxiety down a notch.
  • Hang happy photos in your home. People tend to find the places in their homes that contain photos are the most relaxing. Having copies of real, physical photos around your room, office, or house helps enhance feelings of social bonds.

— WTF fun facts

Source: “It’s official! Looking at old photos is more relaxing than meditating” — Digital Camera World

WTF Fun Fact 13082 – Robin Williams’ Lewy Body Dementia

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After comedian Robin Williams took his life in 2014, his autopsy revealed that he had one of the most severe cases of Lewy body dementia doctors had ever seen. Nearly every brain cell examined contains abnormal deposits of a protein called alpha-synuclein (aka Lewy bodies), which can lead to problems with thinking, behavior, and mood.

Robin Williams’ struggle with Lewy Body Dementia

Most of the world learned of the comedian’s health struggle after his wife, Susan Schneider wrote an article (cited below) in the academic journal Neurology published in 2016.

She began…

“As you may know, my husband Robin Williams had the little-known but deadly Lewy body disease (LBD). He died from suicide in 2014 at the end of an intense, confusing, and relatively swift persecution at the hand of this disease’s symptoms and pathology. He was not alone in his traumatic experience with this neurologic disease. As you may know, almost 1.5 million nationwide are suffering similarly right now.”

She went on to explain that Robin Williams’ Lewy Body Dementia was an extreme case.

“Not until the coroner’s report, 3 months after his death, would I learn that it was diffuse LBD that took him. All 4 of the doctors I met with afterwards and who had reviewed his records indicated his was one of the worst pathologies they had seen. He had about 40% loss of dopamine neurons and almost no neurons were free of Lewy bodies throughout the entire brain and brainstem.”

The comedian’s struggle

Before his death, Williams had huge spikes in anxiety that led his wife to wonder if he might be a hypochondriac. But only later did she learn these were symptoms of the disease. “Not until after Robin left us would I discover that a sudden and prolonged spike in fear and anxiety can be an early indication of LBD,” she explained.

The winter before his death, he was suffering from other symptoms such as “paranoia, delusions and looping, insomnia, memory, and high cortisol levels.” None of the psychotherapy he received could ease his pain. Like many people with LBD, antianxiety medication and other psychiatric drugs may have made his symptoms worse.

After his suicide, Robin Williams’ wife got her answers.

“Once the coroner’s report was reviewed, a doctor was able to point out to me that there was a high concentration of Lewy bodies within the amygdala. This likely caused the acute paranoia and out-of-character emotional responses he was having. How I wish he could have known why he was struggling, that it was not a weakness in his heart, spirit, or character.” — WTF fun facts

Source: “The terrorist inside my husband’s brain” — Neurology

WTF Fun Fact 13080 – Errors in Hair Analysis

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Crime scene analysis and the scientific investigation of crime scenes got a lot of attention once we started seeing them on television. More people than ever wanted to go into the field. But the science underlying some of these investigations is shaky at best. And in 2015, the FBI had to admit that at least one aspect of their crime scene analysis training was seriously flawed. Over 3000 cases needed to be rechecked for errors in hair analysis.

The Innocence Project

Sometimes we think the science on biological evidence left at a crime scene must be iron-clad or prove that a person was there. But that’s simply not the case.

In fact, it was the FBI, the Department of Justice, the Innocence Project, and the National Association of Criminal Defense Lawyers (NACDL)who jointly reported that:

“…the Department and the FBI are committed to ensuring that affected defendants are notified of past errors and that justice is done in every instance. The Department and the FBI also are committed to ensuring the accuracy of future hair analysis testimony, as well as the application of all disciplines of forensic science. The Department and FBI have devoted considerable resources to this effort and will continue to do so until all of the identified hair cases are addressed.”

Improving the science going forward

Of the past errors, the statement also revealed:

“These findings confirm that FBI microscopic hair analysts committed widespread, systematic error, grossly exaggerating the significance of their data under oath with the consequence of unfairly bolstering the prosecutions’ case,” said Peter Neufeld, Co-Director of the Innocence Project, which is affiliated with Cardozo School of Law. “While the FBI and DOJ are to be commended for bringing these errors to light and notifying many of the people adversely affected, this epic miscarriage of justice calls for a rigorous review to determine how this started almost four decades ago and why it took so long to come to light. We also need lawmakers in Washington to step up and demand research and national standards to prevent the exaggeration of results in reports and in testimony by crime lab analysts.”

Sadly, many who were perhaps wrongfully convicted still had to wait for evidence to be reassessed.

“It will be many months before we can know how many people were wrongly convicted based on this flawed evidence, but it seems certain that there will be many whose liberty was deprived and lives destroyed by prosecutorial reliance on this flawed, albeit highly persuasive evidence. Just as we need lawmakers to prevent future systemic failures, we need courts to give those who were impacted by this evidence a second look at their convictions,” said Norman L. Reimer, Executor Director of NACDL. —WTF fun facts

Source: “FBI Testimony on Microscopic Hair Analysis Contained Errors in at Least 90 Percent of Cases in Ongoing Review” — FBI.gov

WTF Fun Fact 13079 – Snowflakes Require Dust or Pollen

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Snowflakes are frozen bits of water that form around a “nucleus.” That nucleus is something that must already exist in the air – like a dust or pollen particle.

How are snowflakes made?

All political jokes aside, snowflakes are actually an interesting natural phenomenon.

According to the National Oceanic and Atmospheric Administration (cited below): “A snowflake begins to form when an extremely cold water droplet freezes onto a pollen or dust particle in the sky. This creates an ice crystal. As the ice crystal falls to the ground, water vapor freezes onto the primary crystal, building new crystals – the six arms of the snowflake.”

This doesn’t mean the air is dirty or polluted – after all, pollen is completely natural!

Who are snowflakes so unique?

You may be wondering why all snowflakes are unique if they each require the same circumstances in order to form.

NOAA has an answer for that!

Snowflakes are made up of ice crystals. These build up around the nucleus symetrically “because they reflect the internal order of the crystal’s water molecules as they arrange themselves in predetermined spaces (known as “crystallization”) to form a six-sided snowflake.”

A combination of air temperature, humidity, and the speed at which they fall determine precisely how the ice crystals form into different shapes. When it warmer, the crystals have a longer, sharper shape and when it’s cold, they tend to be shorter and flatter.

Snowflakes always have six sides, but those “arms” can branch off in different directions depending on those factors as well.

That’s why no two snowflakes are exactly alike.

Of course, when you get 5 or 6 feet of snow, it’s pretty hard to think about those snowflakes as individuals! They all go in the same shovel! — WTF fun facts

Source: “How do snowflakes form? Get the science behind snow” — NOAA

WTF Fun Fact 13073 – Teens Tune Out

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Got teenagers? Do you feel like they listen to you? If not, it’s likely because our brains rewire themselves to tune out our parents in our teen years. In fact, Stanford University research shows that teens tune out their mothers’ voices around the age of 13.

How teens tune out

More specifically, according to Stanford (cited below), “Around age 13, kids’ brains no longer find their moms’ voices uniquely rewarding, and they tune into unfamiliar voices more.”

Of course, this doesn’t give a person a free pass not to listen to their mom. But it does seem to be an evolutionary mechanism. Our brains are preparing to separate us from our parents in the long run – something we all have to do in order to become successful adults.

Clinical associate professor of psychiatry and behavioral sciences Daniel Abrams, Ph.D. told Stanford News: “Just as an infant knows to tune into her mother’s voice, an adolescent knows to tune into novel voices. As a teen, you don’t know you’re doing this. You’re just being you: You’ve got your friends and new companions and you want to spend time with them. Your mind is increasingly sensitive to and attracted to these unfamiliar voices.”

Rewarding signals

All of these changes have to do with the reward centers of the brain. The brain prioritizes stimuli (like certain voices) that activate the reward centers. Unfamiliar voices start to stimulate the brain more around age 13. So while they are still capable of listening to their moms, teens simply don’t get the same level of stimulation and comfort from her familiar voice as they did as children.

In most ways, this is a good thing. It’s a sign that their brain is maturing and getting ready to engage with the world independently from their parents. This allows them to become “socially adept outside their families” – something required for any adult.

How things change over time

Under the age of 12, kids can identify their mom’s voice with great precision, and it tends to activate reward centers and emotion-processing regions of the brain. But if you’re a mom, take heart. Your voice is what sets your child’s brain up for their social and emotional future.

According to co-author Percy Mistry, Ph.D., “The mother’s voice is the sound source that teaches young kids all about the social-emotional world and language development.”

But things change as we grow up. And the switch towards privileging unfamiliar voices between ages 13 and 14 happens at the same time in all genders. — WTF fun facts

Source: “The teen brain tunes in less to Mom’s voice, more to unfamiliar voices, study finds” — Stanford University

WTF Fun Fact 13066 – Video Games and Surgeons

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Surgeons who play video games for at least a few hours a week make fewer errors during surgery. This specifically relates to non-invasive and very precise laparoscopic surgery.

Surgeons who play video games

In an article titled The Impact of Video Games on Training Surgeons in the 21st Century (cited below), researchers from Beth Israel Medical Center, New York University Medical Center, Montefiore Medical Center, Brookdale University Hospital and Medical Center, Iowa State University, and Virginia Commonwealth University found that video games are correlated with better surgical outcomes.

According to the authors:

“Past video game play in excess of 3 h/wk correlated with 37% fewer errors…and 27% faster completion…Current video game players made 32% fewer errors…performed 24% faster…and scored 26% better overall…than their nonplaying colleagues…Regression analysis also indicated that video game skill and past video game experience are significant predictors of demonstrated laparoscopic skills.”

Videos games for surgical success

The researchers set out to measure the relationship between “laparoscopic skills and suturing capability, video game scores, and video game experience.”

Because they found a correlation between video game skills and positive laparoscopic surgical skills, the researchers suggest that medical training curricula might video games in the future. But this applied to surgery that didn’t require a large incision. Instead, laparoscopic surgery uses a small incision or hole and is largely computer-guided. It’s a more popular kind of surgery because there are typically fewer risks involved for the patient and less down-time.

While the authors acknowledged the drawbacks of playing video games excessively (such as poor grades and possible heightened aggressiveness), they also highlighted the benefits.

More specifically:

“Disturbing negative correlations with video game play include lower grades in school; aggressive thoughts, emotions, and actions (including physical fights); and decreasing positive prosocial behaviors. Excessive game playing has also been linked to childhood obesity, muscular and skeletal disorders, and even epileptic seizures. Other physical findings have included increases in blood pressure, heart rate, and stress hormones (norepinephrine and epinephrine)… However, positive benefits of video game play include increased performance on eye-hand coordination tasks and neuropsychological tests and better reaction time, spatial visualization, and mental rotation.”

The benefits of gaming

The authors cited other studies that found correlations between playing video games and the ability of gamers to process visual information, improve their spacial awareness skills, and develop better visual attention processing.

These are all crucial skills for surgeons. — WTF fun facts

Source: “The Impact of Video Games on Training Surgeons in the 21st Century” — JAMA Surgery

WTF Fun Fact 13065 – World’s Largest Diamond Mine

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The Popigai crater, located in Siberia, is estimated to be the world’s largest diamond mine. It may contain trillions of carats of diamonds. Previously, the Russian government has claimed that, if mined, the diamonds could tank the entire worldwide diamond market. But there’s a catch.

Is Popigai crater the world’s largest diamond mine?

There are a few things we know for sure about Popigai. First, it’s one of the largest (the 4th largest, to be exact) and most well-preserved asteroid impact craters on the planet. It’s located in northern Siberia and is roughly 60 miles in diameter.

According to NASA, “The crater sits on the northeastern margin of the Anabar shield, which contains a mix of graphite-bearing rocks and sedimentary rocks. The impact from the asteroid melted 1,750 cubic kilometers (420 cubic miles) of rocks and instantly transformed the flakes of graphite into diamonds. Diamonds formed in a hemispherical shell about 1.6 kilometers (a mile) thick and about 12 to 13 kilometers away from the impact site. Scientists estimate that diamonds did not form at the impact site because the collision’s heat and pressure were likely too great to survive there.”

The Russians have claimed for decades that the crater contains “trillions of carats” of diamonds. But it’s been largely left unexplored.

Not your average diamonds

Because the diamonds in the Popigai crater are impact diamonds, they didn’t form the same way as gemstones. That means they’re of no use to the jewelry industry.

While they range in size, most are smaller than 2 millimeters. But more importantly, they aren’t pure.

While they hold great value for industrial uses, Russia has left Popigai largely unmined because they have the means to produce synthetic diamonds for industrial purposes without going through the trouble of mining at such a large scale.

First discovered in the 1970s under the Soviet regime, the diamond mind made world news in 2012. At the time, the Russians claimed the crater held enough diamonds to supply the international diamond market for 3000 years. But, again, that would be for industrial diamonds.

Russia already has a series of diamond mines. Right now, it appears the cost of mining the diamonds so far does not outweigh their value – at least to Russia. Others have speculated that mining the diamonds could lead to an enormous technological revolution. — WTF fun facts

Source: “Popigai: Russia’s Crater of Diamonds – Estimated To Contain ‘Trillions of Carats'” — SciTechDaily