animal facts

WTF Fun Fact 13552 – Blue Whale’s Heartbeat

A blue whale’s heartbeat can be detected from an astonishing distance of two miles away!

The Mighty Pulse of the Blue Whale

The blue whale, known as Balaenoptera musculus, reigns as the largest creature on our planet. Its size surpasses even the mightiest dinosaurs. One of its awe-inspiring attributes? Under the right conditions, you can detect a blue whale’s heartbeat from an incredible distance of two miles away.

The Heart: Size and Scale

First, consider the immense size of the blue whale’s heart. It weighs around 400 pounds (181 kilograms) and is about as large as a small car. This massive organ pumps blood through a creature that can be up to 100 feet long and weigh as much as 200 tons. Each beat sends gallons of blood throughout its enormous body, delivering oxygen to muscles and vital organs.

Mechanics of Each Beat

The rate of the blue whale’s heartbeat also intrigues researchers. When a blue whale surfaces, its heart beats eight to ten times per minute. Yet, during a deep dive, this rate can plummet to a mere two beats per minute. This drop in heartbeat allows the whale to conserve oxygen and stay underwater for durations that can reach 90 minutes.

Each heartbeat exerts tremendous force. As the heart contracts, it generates strong pressure waves. Given the power and size behind each beat, these waves can travel for miles.

Tools of Detection: Hydrophones

Researchers use hydrophones, underwater microphones, to tap into the ocean’s soundscape. These devices pick up a range of sounds, from the melodies of humpback whales to the conversations of dolphins and the distant rumblings of underwater earthquakes. Amid these myriad sounds, the rhythmic thud of the blue whale’s heartbeat offers valuable information.

Water conditions, including temperature, salinity, and depth, affect how sound travels underwater. However, the unique rhythm of the blue whale’s heartbeat stands out, even in this busy sonic environment.

Heartbeat and Conservation

Studying the blue whale’s heartbeat has implications for conservation. Tracking the heart rate can give insights into the health of the species. Human activities, such as shipping or underwater drilling, can stress whales and alter their heart rates. By listening to the ocean’s pulse, scientists can determine the effects of human-caused noise on these marine giants and adjust conservation strategies accordingly.

Additionally, by understanding the blue whale’s heart, we can explore the limits of size in the animal kingdom. This knowledge might explain the maximum potential size of living organisms and provide insights into the evolution of marine giants.

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Source: “5 things you never knew about a whale’s heart” — Cold Spring Harbor Whaling Museum

WTF Fun Fact 13547 – Dolphin Bromance

Dolphin bromance paints a vivid picture of the profound relationships male dolphins cultivate. Dive into the oceanic world, and you’ll find a complex tapestry of social interactions, with dolphin bromance standing out as one of the most captivating threads.

The Nature of Dolphin Bromance

Dolphins, with their playful antics and impressive intelligence, have always intrigued scientists. Within their pods, one can observe a complex hierarchy and a myriad of relationships. Particularly interesting are the coalitions formed by male dolphins. Often, groups of two or three males will bond, creating an alliance that lasts for many years. These bonds aren’t merely casual acquaintances formed out of convenience. They’re strategic, aiding these marine mammals in everything from securing mates to defending territory.

Strategies and Benefits

The primary objective of these bromances is two-fold. First, these alliances help in securing mating rights with females. In the vast expanse of the ocean, having allies ensures that a male dolphin has better chances during the mating season. Secondly, in an environment filled with potential threats, having a dependable coalition means better defense mechanisms against predators or rival male groups.

In addition to these practical benefits, these alliances also seem to offer emotional support. Dolphins are known for their advanced cognitive abilities, and these bonds hint at an emotional depth that’s still being explored. Observations have shown members of these alliances engaging in synchronized swimming, mutual grooming, and other cooperative behaviors.

The Emotional Depth

Understanding dolphin bromance isn’t just about recognizing the strategic benefits. There’s an emotional aspect to these relationships. Dolphins, known for their high levels of intelligence, showcase behaviors hinting at deep emotional connections. Members of these male alliances are often seen supporting each other during times of distress, echoing the kind of empathy and understanding seen in close human relationships.

It’s not uncommon to see paired dolphins assisting an injured member, or even just spending time in close proximity, echoing the behaviors seen in close human friendships. The depth of these bonds and the extent of their emotional intelligence are still subjects of research, but there’s no denying the profound connections they showcase.

Implications for Marine Biology

The study of these bromances doesn’t just shed light on dolphin behavior; it offers insights into the broader realm of marine biology. Understanding the nature of dolphin relationships helps in conserving their habitats and ensuring their survival. Additionally, it prompts a deeper dive into the emotional lives of other marine creatures.

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Source: “Swan River dolphins form ‘bromances’ to secure females, study finds” — Phys.org

WTF Fun Fact 13544 – How Long Can a Tarantula Live Without Food?

If you’re a tarantula owner, hopefully you’re not asking yourself, “How long can a tarantula live without food?”

However, if for some reason you need to know, the answer may astound you.

So, How Long Can a Tarantula Live Without Food?

Tarantulas, the large, hairy spiders that evoke fear in many, hold an astonishing survival capability – the ability to endure up to two years without a meal.

It’s a feat that many creatures on Earth would find hard to match.

But how does this eight-legged creature achieve such a prolonged fast?

Unique Physiology Allows Tarantulas to Live Without Food

Unlike mammals that require regular food intake for energy and maintenance, tarantulas have a slower metabolism. This low metabolic rate means that they don’t burn energy at the same speed as other animals. Consequently, they can conserve energy over long periods, allowing them to survive during times of food scarcity.

While they can survive without food for a long duration, access to water remains crucial.

Tarantulas, like all living organisms, need water for basic cellular functions. They can go weeks without it, but eventually, the lack of water will become a bigger concern than the lack of food.

When in their natural habitat, tarantulas will often burrow deep into the ground to access cooler and more humid conditions, which helps them maintain their water balance.

Refusing Food

Tarantulas, throughout their lifetime, go through periods of molting. This is when they shed their exoskeleton to allow for growth or to repair any damage.

During the pre-molt and molting phases, tarantulas tend to refuse food altogether, further lengthening the periods between meals. Additionally, the younger the spider, the more frequent these molting cycles are.

As tarantulas mature and their growth slows, their molting becomes less frequent, and the intervals between feeding can extend even further.

Food Scarcity Determines How Long A Tarantula May Go Without Food

In their natural habitats, tarantulas may not always find prey readily available.

Drought, seasonal changes, or other environmental factors can result in food shortages. Thus, this incredible adaptation to long fasting durations is not just an interesting fact; it’s a survival mechanism. It ensures that during lean times, the tarantula can wait it out, remaining relatively inactive, conserving energy, and then springing to action when food becomes available again.

Another factor that plays into the tarantula’s ability to go without food for extended periods is its size.

Larger tarantulas have more fat reserves than their smaller counterparts. These reserves provide the necessary energy during food shortages. Consequently, bigger tarantulas can often go longer without eating compared to younger, smaller ones.

Don’t Let Captive Tarantulas Go Without Food

While tarantulas have this remarkable ability, those who keep them as pets should exercise caution. In captivity, it’s not uncommon for tarantulas to refuse food for various reasons. Whether it’s due to stress, an impending molt, or changes in their environment, pet owners should monitor their spiders closely.

If a tarantula doesn’t eat, it’s essential to ensure that it has access to fresh water. And while they can go without food, this doesn’t mean they should be deliberately starved. Their natural ability to fast is a survival mechanism in the wild, not an invitation for neglect.

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Source: “How Long Can Tarantulas Go Without Eating Or Water?” — Animal Vivid

WTF Fun Fact 13531 – Gef, The Talking Mongoose

Have you ever heard a talking mongoose? Of course not. But you may have heard of one. His name is Gef.

In the annals of strange occurrences and unsolved mysteries, few tales captivate the imagination quite like that of Gef the Talking Mongoose, a mysterious entity that reportedly haunted a farmhouse on the Isle of Man in the 1930s.

Some called it a spook-weasel, others a poltergeist—Gef was unlike anything anyone had ever encountered. This story combines elements of folklore, psychology, and the paranormal, and despite investigations, it has resisted a definitive explanation for nearly a century.

A Farmhouse Stirred by Strange Sounds

The story begins in 1931 when the Irving family—James, Margaret, and their daughter Voirrey—began hearing eerie sounds in their isolated home, Doarlish Cashen, near the village of Dalby. The noises included scratching, rustling, and even what could only be described as vocalizations.

Convinced they had a rodent problem, they set up traps, to no avail.

The Mongoose Appears

But then, the situation escalated. The entity—whatever it was—began to mimic the family’s speech patterns, imitating a child learning to talk. Before long, it was speaking in full sentences.

Named “Gef,” the entity claimed to be a mongoose born in New Delhi in 1852, who had survived a life fraught with danger, including being “shot at by Indians.”

Soon, Gef was having full conversations, especially with Voirrey. Incredibly, he claimed to speak multiple languages, including Russian, Manx, Hebrew, Welsh, Hindustani, Flemish, Italian, and Arabic.

Gef, The Talking Mongoose

Only Voirrey claimed to have seen the critter, describing him as the size of a small rat with a bushy tail and yellow fur. Gef was reportedly so camera-shy that he avoided being photographed. He soon became a part of the Irving family’s life, allegedly visiting neighbors and even relaying gossip back to the family, further perplexing the community.

According to the family, Gef could shape-shift and turn invisible, attributes that helped him go unnoticed on his adventures. Convenient!

As Gef’s fame spread, journalists and paranormal investigators sought to witness this phenomenon firsthand. Harry Price, a noted psychic investigator, and R.S. Lambert, the then editor of BBC magazine ‘The Listener,’ visited the Irvings to study Gef.

Upon their arrival, however, Gef became “invisible.” Harry Price examined samples of fur and paw prints provided by the family but was skeptical about their authenticity, finding them more likely to be from the family dog than any known mongoose or weasel.

The Disappearance of Gef The Talking Mongoose

Eventually, as the 1930s wore on, Gef vanished from the public eye as interest waned. Some speculate that Voirrey, who was known for her ventriloquism skills, was behind the elaborate hoax, despite her denials.

The general consensus was that Gef was either a family joke that went too far or a deliberate hoax. However, there are still those who believe the tale points to unexplained phenomena or poltergeist activity.

Despite the skepticism and the lack of definitive evidence, Gef has earned a permanent spot in the annals of British folklore and paranormal history. Whether a product of human psychology, an elaborate joke, or an actual paranormal entity, the story continues to fascinate and puzzle talking mongoose enthusiasts.

What do you think? Was he a figment of a lonely girl’s imagination, a hoax perpetuated by a family for reasons unknown, or something more unexplainable?

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Source: “We’re Proud To Introduce Gef, The Talking Mongoose That Mystified A Nation” — IFL Science

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.

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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.

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

WTF Fun Fact 13526 – Hercules Beetle

The Hercules beetle is a wonder in the world of insects, renowned for its colossal size and unique morphology. Originating from the rainforests of Central and South America, this beetle has a horn that can even surpass its own body length, making it a subject of intrigue for both scientists and insect enthusiasts.

Physical Characteristics of the Hercules Beetle

Notably, male Hercules beetles are the ones that sport elongated horns, which they primarily use for battling rivals when competing for mates. These horns boast a unique inner structure, built much like a honeycomb. This internal design enhances the horn’s durability while keeping it lightweight. The beetle’s strength-to-weight ratio is astounding; it has the capability to lift an astonishing 850 times its body weight. This herculean feat is what lends the beetle its mythological name, Hercules.

The life cycle of a Hercules beetle comprises four key stages: egg, larva, pupa, and adult. Among these, the larval stage stretches the longest, often up to two years. During this period, the larvae sustain themselves on decaying wood, hidden away from predators.

Interestingly, the diet of the Hercules beetle is mostly plant-based. The larvae feed on rotting wood, aiding in forest decomposition. Adults prefer sugary foods like fruit, but also consume tree sap. This diet provides both nourishment and hydration, necessary for their survival in the wild.

The horn plays a pivotal role in the beetle’s mating rituals. Males engage in combative duels using their horns, tossing rivals off logs and branches to win the favor of a female. The horn, therefore, is not just for show but a tool for survival and propagation.

Human Engagement

Due to their unique appearance and relatively low maintenance, Hercules beetles have become popular pets. Beyond this, the scientific community is profoundly interested in these beetles. Studies often focus on the properties of the beetle’s exoskeleton, which could inspire advances in materials science.

Currently, it is not categorized as an endangered species. However, looming threats like habitat loss due to rampant deforestation put their population at risk. Environmental agencies emphasize the need for conservation efforts to protect this fascinating species.

Cultural Relevance

The Hercules beetle has permeated cultural consciousness in several ways. In Japan, children engage in beetle sumo wrestling as a form of entertainment. Additionally, the Hercules beetle appears in folklore and art, where it symbolizes traits like strength and bravery, much like its namesake.

The Hercules beetle captivates our imagination with its sheer size, unparalleled strength, and unique anatomical features. It serves as a vital subject in both scientific research and cultural narratives. Although it might not possess the divine attributes of its namesake, the Greek demigod Hercules, this remarkable beetle holds its own as a force in the natural world.

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Source: “Hercules Beetle” — AZ Animals

WTF Fun Fact 13524 – Lobsters Don’t Age

Lobsters don’t age.

This sea-dwelling crustacean defies the conventional understanding of aging by not showing signs of age-related decline. Here’s why lobsters have intrigued scientists and could potentially reshape our understanding of aging.

Biochemical Wizardry and Lobster Age

The secret behind a lobster’s seemingly eternal youthfulness lies in its biochemistry. Lobsters produce a substance called telomerase. This enzyme plays a role in maintaining the length of telomeres, which are protective caps at the ends of DNA strands.

In most organisms, including humans, telomeres shorten as they age, leading to cellular degeneration and eventually death. Lobsters, however, keep pumping out telomerase throughout their lives, maintaining their telomere length and, consequently, their cellular integrity.

Lobsters Don’t Age – Or Become Less Fertile

Another fascinating feature is that lobsters don’t experience a decline in fertility with age. In many species, reproductive capabilities wane over time. Not so for the lobster. Older females produce even more eggs than their younger counterparts. This aspect has led some researchers to speculate that lobsters may follow a different, if not unique, aging trajectory compared to other animals.

Lobsters continue to grow throughout their lives by molting. This involves shedding their exoskeleton and growing a new one. You might think that this process would become less efficient as the lobster ages, but that’s not the case. Each molt can result in a 14% increase in body size, irrespective of the lobster’s age.

The Age-Energy Paradox

You would assume that continuously growing and molting would require a tremendous amount of energy, and that this might become a constraint as lobsters age. Interestingly, lobsters do not face such limitations. They maintain robust metabolic rates and energy reserves, challenging the notion that energy capacity diminishes with age.

Another marvel lies in the lobster’s immune system. It doesn’t show signs of weakening with age, unlike in humans and other animals. Their robust immune systems add another layer of mystery to their already intriguing biology.

While lobsters don’t weaken with age, they aren’t immortal. Their demise usually comes from external factors like predation or disease. In their natural habitats, they have plenty of predators, including larger lobsters, fish, and even humans. As they grow bigger and older, they also become more susceptible to capture because they make for a more enticing meal.

Lobsters Don’t Age But They Don’t Live Forever

Though their bodies may not betray them, environmental conditions can still impact a lobster’s lifespan. Changes in water temperature, increased pollution, and loss of habitat can affect their longevity. Still, these factors do not trigger the internal mechanisms of decline that aging does in most other organisms.

The study of lobsters has far-reaching implications for understanding aging in other organisms, including humans. Researchers are keen on exploring whether the principles of the lobster’s longevity and resistance to aging can somehow be applied to human medicine. There’s ongoing research into telomerase, and it’s considered a hot topic in anti-aging studies.

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Source: “Are lobsters immortal?” — Natural History Museum

WTF Fun Fact 13516 – Bald Eagle Breaststroke


Bald eagles, like some other birds of prey, can swim using a movement that’s remarkably similar to the human breaststroke. If an eagle catches a fish that’s too heavy to lift, it may use its wings in a swimming motion to move to shore with its catch.

The Bald Eagle Breast Stroke

When one thinks of the American bald eagle, a distinctive image comes to mind: a majestic bird soaring high in the skies, its sharp eyes scouting below for prey, or perched high atop a tree or cliff. Rarely do we picture this iconic bird swimming in water, wings sprawled out, making its way steadily to the shore.

However, bald eagles are primarily fish eaters, and their hunting strategy involves swooping down from a high perch or mid-air to snatch fish out of the water with their talons. Sometimes the prey might be too hefty for the eagle to lift.

Instead of abandoning the catch, the eagle, driven by instinct and determination, will resort to “swimming” to the nearest shore, using its wings in a motion reminiscent of the human breaststroke.

The Mechanics of the Eagle’s “Breaststroke”

Eagles, like all birds, have powerful pectoral muscles that control their wing movements. When airborne, these muscles allow them to achieve strong, sustained flapping or to glide gracefully using updrafts. In the water, these same muscles serve a different but equally vital purpose.

An eagle in the water will spread its wings out and push against the water, essentially using its wings as makeshift paddles. This motion propels the bird forward in a slow but steady manner. The movement is surprisingly coordinated, and the resemblance to the human breaststroke is uncanny. The eagle keeps its head above water, looks straight ahead, and aims for the shore.

Swimming is not an eagle’s forte, so the bald eagle breaststroke is not something you’re likely to see.

The process is energy-intensive and leaves the bird vulnerable to potential threats. The waterlogged feathers become heavy, making the task even more arduous.

However, the promise of a big meal may outweigh the risks, especially during breeding season when there are eaglets to feed. A large fish can provide sustenance for the entire family.

While the image of a bald eagle swimming might seem incongruous, it’s a vivid reminder of the surprising and often overlooked behaviors of the animal kingdom. Nature is full of examples of adaptability and resilience, and the bald eagle’s occasional foray into aquatic locomotion is a fascinating instance of this.

Want to see an eagle in action? Check it out:

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Source: “Bald Eagle Does the Breaststroke” — Good Nature