fun animal facts

WTF Fun Fact 13584 – Owls Don’t Have Eyeballs

Owls don’t have eyeballs. At least not in the traditional sense.

If Owls Don’t Have Eyeballs, What Do They Have?

Owls possess elongated, tubular eyes that are fixed in their sockets. This unique design provides them with exceptional vision, especially in low light.

The reason behind this peculiar eye shape is all about maximizing light intake and enhancing their depth perception. With their long, tube-shaped eyes, owls can collect and process a significant amount of light. This feature is vital for a creature that does most of its hunting during twilight hours or in the dark of the night.

Now, since owls can’t move their eyes within their sockets like humans can, they’ve developed an incredible neck flexibility. An owl can rotate its head up to 270 degrees in either direction. Imagine turning your head almost entirely backward! This ability allows them to have a wide field of view without needing to move their bodies.

The Trade-Off

There’s always a trade-off in nature. While owls can see far and wide with their tubular eyes, their peripheral vision is limited. That’s where their keen sense of hearing comes into play. Together with their exceptional eyesight, their auditory skills make them formidable nocturnal hunters.

An owl’s retina has an abundance of rod cells, which are sensitive to light and movement. These cells help the owl detect even the slightest movement of prey in dimly lit conditions. And while they have fewer cone cells, responsible for color vision, recent studies suggest that owls can see some colors, particularly blue.

Given the size and prominence of an owl’s eyes, protecting them is crucial. Owls have a third eyelid known as a nictitating membrane. This translucent lid sweeps across the eye horizontally, acting as a windshield wiper to remove dust and debris. It also helps in keeping their eyes moist.

The unique eye structure of owls has fascinated scientists and researchers for years. By studying how owls see, we gain insights into improving visual technologies, especially those required to function in low-light conditions.

— WTF fun facts

Source: “Do Owls Have Eyeballs: The Unique Vision And Skills Of Owls” — DiscoveryNatures

WTF Fun Fact 13528 – Crows and Owls

Nature offers many rivalries, but few are as captivating as the longstanding feud between crows and owls. These two avian species don’t see eye to eye, and their interactions are often intense.

Crows and Owls

Crows belong to the corvid family, known for intelligence and complex social structures. They live in groups called murders and often roam their territories searching for food. Crows are highly adaptable and can survive in various environments, from rural areas to cities.

Owls are the masters of silent hunting, capable of swooping down on prey without making a sound. They belong to different families, but most are solitary and nocturnal. Owls rely on their keen sense of hearing and exceptional night vision to locate and capture prey.

The Sources of the Dispute Between Crows and Owls

Both crows and owls are carnivorous and sometimes target the same food sources. Small mammals, insects, and even other birds fall into their menus. This dietary overlap fuels competition and neither species appreciates a rival infringing on its hunting ground.

These animals often stake out territories that overlap. Crows are territorial creatures and defend their space fiercely. Owls, though less social, are equally protective of their hunting grounds. When territories collide, so do the birds.

Crows are diurnal, active during the day, while most owls are nocturnal, active at night. You’d think this would minimize conflict, but it doesn’t. Crows often spot owls resting in trees during the day and raise an alarm. The noisy cawing alerts other crows, and soon a mob forms to drive the owl away.

Mobbing: A Crow’s Defense Mechanism

Crows engage in a behavior called “mobbing” when they encounter a predator like an owl. They swarm the predator, cawing loudly, diving at it, and even pecking it to drive it away. This tactic usually works, as the owl becomes overwhelmed and leaves the area.

Crows initiate these confrontations for a reason. Owls pose a threat to young crows and eggs, making them a natural enemy. By driving an owl away, crows protect their offspring from becoming a meal.

Owls are not the aggressors in these encounters, but they aren’t passive victims either. When cornered, owls will fight back. Their sharp talons and beaks are formidable weapons. However, they prefer to avoid such confrontations and will often vacate an area if mobbed regularly by crows.

Survival of the Smartest

The crow-owl rivalry isn’t just about survival but also intellectual engagement. Crows seem to understand that owls are predators, and their mobbing behavior suggests advanced problem-solving skills. Owls, for their part, know to evade areas frequented by aggressive crows.

The Role of Humans

Humans indirectly contribute to this rivalry by altering natural habitats. Urbanization pushes these birds closer together, making encounters more frequent. Ironically, human presence can also offer temporary truces; both species are known to raid human trash bins for easy meals, sometimes tolerating each other’s presence for the sake of food.

— WTF fun facts

Source: “Crows vs Owls: What is going on?” — Carleton College

WTF Fun Fact 13527 – World’s Oldest Chicken

Meet Peanut, a 21-year-old bantam hen from Waterloo, Michigan. Recently dubbed the world’s oldest living chicken by Guinness World Records, Peanut has shattered all norms surrounding avian longevity. In a world where the average chicken lives only 5 to 10 years, Peanut’s journey is not just fascinating but also scientifically intriguing.

A Chick with Grit

Peanut’s life started on rocky ground. Abandoned in a frozen egg by her mother, she was minutes away from being a meal for a hungry fox. However, a chirp for help made Marsi Parker Darwin, the owner of Darwin’s Eden Farm, reconsider the decision to discard the seemingly lifeless egg.

Marsi carefully broke the shell and gave Peanut her first taste of life, one she wasn’t willing to give up so easily.

A Bird With Identity

Most chickens live an ordinary life, but not Peanut. From the beginning, she exhibited an unconventional personality. She relished human company, often perching on Marsi’s arm or sitting quietly in her pocket.

According to Marsi, Peanut never saw herself as a ‘normal’ chicken but rather as an individual deserving of a place on Darwin’s Eden, a farm that serves as a sanctuary for various animals.

Peanut’s Secret to Being the World’s Oldest Chicken

The question that puzzles many is, how did Peanut manage to live this long? Marsi credits a well-rounded diet and specialized care for her animals. However, even she believes there must be an unknown ‘x-factor’ that has contributed to Peanut’s record-breaking longevity.

Documenting a Lifetime: Photography as Proof

To establish Peanut’s age and hence claim her title, Marsi had to provide proof. Thanks to a well-documented life in pictures, Marsi could substantiate Peanut’s age. Each photograph captured was not just a moment frozen in time but an irrefutable piece of evidence that showcased Peanut’s extraordinary lifespan.

Peanut’s story isn’t confined to Darwin’s Eden. She’s been immortalized in a children’s book, penned by none other than Marsi herself. The book goes beyond narrating Peanut’s unique life; it also serves as a moral lesson, encouraging kids to overcome obstacles and never lose hope, much like Peanut did when she chirped for her life.

Will She Build the Oldest Chicken Ever?

As Peanut enjoys her twilight years, the world is watching to see if she’ll break the record for the oldest chicken ever, currently held by a 23-year-old hen named Muffy. While age may be catching up with her, Peanut’s story serves as a testament to resilience, the power of care, and the miraculous outcomes that can arise from unexpected beginnings.

— WTF fun facts

Source: “Meet Peanut, a 21-year–old chicken and world record holder” — NPR

WTF Fun Fact 13489 – Most Orangutans are Left Handed

If you’re a lefty, you have more in common with an orangutan than just 97% of your DNA since most orangutans are left-handed too. One neuroscientist, Bill Hopkins, said his research showed around 66% of orangutans to be lefties.

Studying Handedness in Orangutans

Curiosity sparked the investigation into orangutan handedness. Scientists found themselves wondering – do these creatures prefer one hand over the other, like us humans? It’s something we’ve all thought about, right? No? Ok, well anyway.

Researchers observed orangutans in their natural and semi-natural habitats. Hopkins appears to be the only one who suggested the specific 66% number. But plenty of other research has found that while some primates like chimpanzees and bonobos (our closest relatives) tend to be right-hand dominant, gorillas and orangutans are not.

What Does it Mean that Most Orangutans are Left-Handed?

Just like in humans, an orangutan’s hand preference comes from the brain. We call it “cerebral lateralization” – a fancy term for one side of the brain being bossier than the other.

The left hemisphere controls right-handedness, and the right hemisphere oversees left-handedness. Both genes and environment play a part in this.

But a mystery remains. Why do orangutans tend to be left-handed more often when compared to humans and other great apes?

Out in the wild, being left-handed doesn’t make the orangutans any less skillful. They foraged for food, made comfy nests, and swung from tree to tree with aplomb. Whether peeling fruit or brachiating through the forest, left-handed orangutans showed no signs of struggle.

Now here’s an intriguing question. We humans share 97% of our DNA with orangutans, so why aren’t more of us left-handed? Researchers are keen on finding an answer. They hope to understand how and why hand preference might have shifted during human evolution.

Orangutans, like us, are social animals. They have a rich array of communication methods at their disposal. This research is igniting interest in the connection between left-handedness and communication. Also, it has made scientists curious about the potential link between hand preference and cognitive abilities.

A Curious Conclusion

The higher percentage of left-handedness in orangutans adds an exciting twist to our understanding of these creatures. It opens up a new avenue for exploration: Why this hand preference? How does it affect their survival, adaptation, and mental prowess?

Researchers are now actively trying to link left-handedness to the species’ behavior and neural traits. They’re also excited to understand how this discovery could shape our understanding of human evolution.

— WTF fun facts

Source: “Do Other Animals Show Handedness?” — Science Friday

WTF Fun Fact 13326 – Sloth Poop

How much do you know about sloth poop? Did you know that sloths only defecate once a week?

What’s interesting about sloth poop?

Because they only poop once a week, sloths can lose up to one-third of their body weight in a single bowel movement.

While most animals poop once or a few times a day, sloths are infrequent poopers. That’s because sloths have a unique digestive system that processes food very slowly. In fact, it can take up to a month for a sloth to digest a single meal. That’s why they don’t need to eat as often as other animals.

The sloth’s digestive tract is designed to extract as many nutrients as possible from food. That means there’s relatively very little leftover to produce waste. Waste is stored in a special sac in the lower part of the sloth’s large intestine. This builds up over time until the sloth is finally ready to poop.

When a sloth has the urge to go, it makes a trip down from the trees to the ground. Because they’re slow-moving, this is a dangerous trip that makes them vulnerable to predators on the ground. But the urge to go is so strong that sloths take the risk.

Once they reach the ground, sloths dig a small hole to “make their deposit.” The feces of a sloth is a valuable source of nutrients for the ecosystem. It’s important to other animals like moths and beetles that feed on it.

Other infrequent poopers

Armadillos are primarily insectivores, meaning they mostly eat insects such as beetles, termites, and ants. And because insects are high in protein and nutrients, armadillos don’t need to eat as frequently as other animals, so their digestive systems have adapted accordingly.

The slow metabolism of the armadillo and its unique digestive system also give the animal the ability to conserve water. This is an important adaptation for living in hot and dry environments. By holding onto their waste for longer periods of time, the animals are able to absorb more water from their food. This reduces the amount of water they need to drink.

— WTF fun facts

Source: “Sloths Only Poop Once a Week — But They Make It a Good One” — How Stuff Works

WTF Fun Fact 13275 – The Hyrax

The hyrax looks like a rodent. But, in fact, it’s actually more closely related to elephants, despite its small size and rodent-like appearance. This surprising relationship is due to similarities in their teeth and skull structures, as well as genetic evidence.

Fun facts about the hyrax

This is one odd little animal!

Hyraxes are also known as dassies or rock rabbits. These little creatures are furry mammals native to Africa and the Middle East. Hyraxes belong to the order Hyracoidea and are found in rocky habitats, such as mountains and cliffs.

There are four species of hyraxes: the rock hyrax, the bush hyrax, the yellow-spotted hyrax, and the tree hyrax. The rock hyrax is the most common and can be found in many parts of Africa.

Hyraxes are social animals that live in groups of up to 80. They communicate with each other through a series of grunts, whistles, and screams (so charming!).

They’re also territorial and mark their territory with unique specialized scent glands located on their feet. The cute little herbivores feed on a variety of vegetation, including leaves, shoots, and bark.

Hyraxes are also known for their excellent sense of hearing and sight. This helps them detect predators such as eagles, leopards, and snakes. When threatened, the animals really know how to make a racket. They will emit a loud, high-pitched scream to alert the rest of the group. (We’re getting increasingly grateful these don’t live in our backyard.)

Turning animals into oil?!

Hyrax oil, also known as rock rabbit oil or dassie oil, is a type of oil that is extracted from the fatty tissues of hyraxes. It has been used for a variety of purposes, including in traditional medicine, as a fuel source, and for cosmetic and perfume production.

Historically, this oil has been used in traditional medicine to treat various ailments, such as skin conditions, ear infections, and rheumatism. It has also been used as a lubricant and fuel source for lamps and candles.

In some cultures, hyrax oil has also been used in cosmetics and perfumes due to its distinctive musky odor. However, the use of their oil in modern cosmetic and perfume production is not common, and synthetic musk fragrances have largely replaced it.

Despite its historical use in traditional medicine and other industries, the harvesting of hyrax oil is considered illegal in many countries due to the endangered status of some hyrax species. As a result, it has largely fallen out of favor in modern times.

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Source: “Hyrax” — Encyclopedia Britannica

WTF Fun Fact 13264 – Duck Have Waterproof Feathers

Did you know that ducks have highly waterproof feathers? It makes sense, right? After all, they’d probably freeze in cold weather if something wasn’t helping to insulate them.

How do waterproof feathers work?

A duck’s waterproof feathers are due to the special oil that they produce.

Ducks have a special oil gland called the preen gland (also known as the uropygial gland) that is located at the base of their tail. They spread the oil over their feathers as they preen themselves.

This oil also keeps the duck’s feathers dry and helps it to float in water. And to top it off, it even contains antimicrobial properties that help to keep the duck’s feathers clean and free from harmful bacteria.

Duck feathers also trap air and provide insulation to keep them warm in cold water. And they have a unique structure that helps to repel water.

The feather shaft is made up of a hard, central quill surrounded by a series of barbs and barbules that interlock to create a flat surface. These barbs and barbules are arranged in a particular way that allows them to lock together tightly. This creates a barrier that prevents water from penetrating through the feather to the bird’s skin.

This unique feather structure is what allows ducks to stay warm and dry in wet environments and helps them to regulate their body temperature.

The beauty of duck feathers

Duck feathers aren’t just practical. They’re also beautiful in ways that humans can’t even see. Their colors aren’t always visible to the human eye.

Many duck feathers contain iridescent structural colors that are created by the way that light reflects off of the feather’s surface. This can create a range of different colors and patterns, from bright greens and blues to deep purples and reds.

Male ducks often have brightly colored feathers that are used to attract mates during the breeding season. For example, male mallards have distinctive green heads and necks, while male wood ducks have a colorful pattern of red, green, and white feathers on their faces and bodies. — WTF fun facts

Source: “Waterfowl feathers” – Ducks Unlimited