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Nature enthusiasts know that animals are capable of some truly mind-blowing feats. But certain abilities are beyond belief. From species with remarkable memory who you'd expect to have little or none, to ants showing empathy, frogs that disappear, and echoes of immortality— the animal world is revealing powers that might make the X-Men feel a bit jealous.
10. Face Fish
Next time you spot a tropical fish, you might want to reconsider being rude. It could recognize you in a police lineup. In an extraordinary discovery, certain fish can actually identify human faces. Well, at least one species can.
The freshwater archerfish Toxotes chatareus hunts insects above the water's surface by firing a precise stream of water to knock them out. Through a training process involving food rewards, the fish were taught to spit at people on a screen. When they correctly identified the right face to spit at, they were rewarded with a treat.
They were able to hit the right face 86% of the time. Forget the myths about fish having a three-second memory. Archerfish can remember up to 44 distinct people. Even when key features of the faces were altered, they still performed impressively.
This incredible ability has left scientists puzzled. Unlike domesticated animals, fish have no natural reason to recognize human faces. It's believed that the capacity to remember facial features comes from the neocortex, a part of the brain found in species like horses, dogs, and even cows. However, the archerfish has a small brain and lacks a neocortex.
9. Insect Photographer
Don’t expect a squad of dung beetle photographers anytime soon. That would probably freak Vin Diesel out. However, they do have their own take on photography—at least, their version of it.
Dung beetles perform a little dance atop their poop ball (where else would they?) during which they mentally capture 'photos' of the sky. Researchers believe this helps them figure out their location, and that this dance forms a mental map of their geographical and celestial surroundings.
Afterward, they drop the ball and can travel in a straight line. It's long been known that insects, including dung beetles, navigate using the light of the Milky Way. But these beetles now demonstrate even more advanced navigational abilities. During their dance, these insect astronomers create an internal map of the Sun, Moon, and stars' positions. They then rely on this stored image to guide them wherever they want to go.
It’s still unclear if they use any other methods to determine their position. No evidence of that has been found yet. What is certain is that they don't have anything else that might make navigation easier. Even when the sky is completely clouded over, dung beetles don’t follow landscape features the way most other insects do.
8. Ant Life Rafts
Certain ant species construct life rafts using their own bodies. But that’s not the surprising part. What amazed researchers was when they took a second look at this already remarkable show of cooperation and discovered that each ant had a designated spot.
When a flood strikes, these ants don’t just haphazardly gather together and hope for the best. They link up in a carefully planned manner, attaching to each other with their jaws, feet, and sticky leg pads. Alpine silver ants will group around the colony’s queen, ensuring her survival by always taking the same spot.
This revelation came when researchers painted ants with different colors and tracked where each one went. Stimulated by simulated floods, the resilient ants consistently remembered their assigned positions.
The most heartwarming aspect is how the ants adapt their rafts when their young are at risk. They form three layers, keeping eggs and pupae snug in the center, while additional worker ants reinforce the raft's sides and top. How positions are determined remains a mystery, but scientists suspect it may depend on each ant’s size, role, age, or even personality.
7. Snake Beats Jet
For many, snakes evoke varying levels of fear. Poisonous fangs, a long history of snake-filled horror films, those unnerving zombie-like stares—take your pick. But now there’s a new dimension to these slithering reptiles, and it’s enough to make people either more scared or more intrigued.
Snakes can accelerate quicker than fighter pilots. In a study that included both venomous and less dangerous snakes (yes, the ones that squeeze the life out of their prey), video footage exposed the surprising truth about their speed.
For constrictors, 14 Texas rat snakes were studied, along with two species of vipers, six western cottonmouths, and 12 western diamondback rattlesnakes. Here's what they found: even when a fighter pilot wears a special suit to counteract gravity, they will black out at nine Gs (nine times the force of gravity). Meanwhile, with no noticeable harm, a snake can strike with up to 28 Gs.
All the snakes in the study struck faster than a human blink. When provoked, they reached their target in a mere 50 to 90 milliseconds. For comparison, it takes humans 200 milliseconds to blink.
6. Waterless Tadpoles
These peculiar frogs make their homes in sand and even munch on it. The adult frogs are fascinating to observe, as the males perform intricate dance moves to woo females and challenge rivals.
However, the young of Micrixalus herrei, known as the Indian dancing frog, remained a mystery—and were even missing for some time. When they were finally discovered living deep beneath the soil in rivers, they proved to be remarkably strange but perfectly adapted to their environment.
These tunneling tadpoles resemble flat eels, with muscular tails that help them dig through silt and gravel. Burrowing during this developmental stage is rare among frogs, but these little creatures are experts at it.
A layer of skin shields their eyes from potential harm as they navigate their pitch-black underground world. They are ribbed, a trait found in only four other species (though not at such a young age), and this adaptation helps them survive. A more robust framework gives them stronger muscles to burrow through the earth and withstand soil pressure.
What truly makes them astonishing is their unique digestion process. After sucking in sediment and decaying organic matter through their filtered jaws, the frogs digest their meals with the help of specialized organs in their intestines—tiny sacks filled with limestone.
5. Glow-In-The-Dark Shark
A new nightmarish shark has been discovered off the Pacific coast. Completely black and living as deep as 1.6 kilometers (1 mile) underwater, it also glows. With its dark appearance, stealthy movements, and bioluminescent properties, scientists have dubbed it the Ninja lanternshark.
This glowing marvel is the latest addition to the family of lanternsharks, which already includes about 40 species lighting up the oceans. Their soft blue glow comes from small, cup-shaped organs called photophores, though this new lanternshark has significantly fewer of them.
Unlike other species that have photophores spread across their entire underside, the Ninja lanternshark only has a few around its head. A glowing head floating through the murky depths of the ocean is enough to send shivers down your spine, but there must be a reason why this newcomer shines in such a unique way.
The reason behind this unusual glow is still a mystery. No one knows why some lanternsharks have glowing bellies or even why some sharks glow at all. Theories suggest that these creatures may use their bioluminescence to lure prey in the darkness, to obscure their shadows from predators below, or possibly even for communication.
4. Climbing Cave Fish
There is a remarkable species of cave fish capable of 'walking' with its pelvis, a trait unique in the fish world. Cryptotora thamicola is completely blind but an adventurous traveler. It moves with a stiff, rocking motion, climbing waterfalls and navigating over rocks in areas with little to no water.
The way these fish use their pelvises resembles walking, not wriggling. This is vastly different from other 'walking' fish like mudskippers, walking catfish, and lungfish, which use their tails and fins to travel over land or riverbeds.
Remarkably, the pelvic bones of this species resemble those of four-legged animals. They share a vital feature—a rigidly supported backbone where the vertebrae are fused together. This is an unexpected structure for a fish, as flexible spines are typically necessary for them to move fluidly through water.
This extraordinary cave fish might be a living missing link. Cryptotora offers the first known evidence of an ancient phase from which four-legged animals evolved to move in the way they do today. The mystery remains as to why this cave fish chooses to leave the safety of pools for challenging journeys up fast rivers and rocky inclines.
3. Immortality
Hydras make their return, this time holding the secret to immortality within their tiny tentacles. Unlike humans, hydras constantly regenerate their bodies using stem cells. These remarkable cells can divide endlessly and transform into any type the body requires—ideal for renewal and recovery.
When biologist Daniel Martinez first learned of the hydras’ alleged deathless abilities, he embarked on a mission to prove otherwise. His experiment involved providing almost 2,300 hydras with optimal living conditions, including top-notch water and gourmet meals, to observe whether any of them would die under perfect care. The theory was that, if hydras were truly incapable of lasting forever, old age would diminish their fertility and increase mortality.
Eight years of royal treatment passed. Each year, about 1 in 167 hydras died, while 80% of the remaining ones thrived without a drop in fertility. Despite some death (as most hydras in the wild perish due to predators and environmental factors), the study revealed that under ideal conditions, hydras showed no signs of aging. Some individuals might even live forever.
2. Tearing New Mouths
Be careful about eating before reading this one. The creepiest mouth in the animal kingdom doesn’t belong to the shark in Jaws but to a creature without a mouth. Hydra vulgaris is a freshwater organism with no bones, shaped like a tube just 1.3 centimeters (0.5 inches) long. At one end, it has a set of barbed tentacles used to paralyze its prey.
As if its appearance weren't already strange enough, the hydra can tear itself a new mouth whenever it’s in the mood for a meal. It rips open the skin of its head, swallows its immobilized prey, and then performs a trick that scar-haters would envy. It seals the mouth once again, leaving no trace of its temporary existence.
If that seems horrifying, it’s even more disturbing at the cellular level. Scientists initially thought this dramatic feat could only occur if the hydra rearranged its cells. However, they found that the transformation was so extreme that it didn’t just rearrange the cells—it actually deformed them, right down to their nuclei. Yet, the hydra continues to rip and re-seal mouths without any negative effects.
1. Texture-Changing Frog
A newly discovered frog from the Andes is showing off a truly bizarre trait. Move over, chameleons—the competition has just one-upped you. When it comes to novel camouflage, this new frog takes it up a notch by changing its texture.
On a night expedition in 2009, researchers found a frog so spiny that they dubbed it the 'punk rocker.' But when they checked on it the next day, they were in for a shock. The spines had vanished, and the frog’s skin was as smooth as the cup it had been resting in.
Baffled, the researchers initially thought the frogs had somehow been swapped. After placing moss in the container, they were astonished to see the spines reappear in just minutes. It turns out these frogs have an exceptional ability to mimic moss, a common feature of their environment.
This shape-shifting skill is unprecedented in amphibians. While it’s astonishing to witness the frog take on the texture of whatever it sits on, it’s causing problems for researchers trying to identify species. Especially when studying preserved samples that could have hidden this incredible ability, possibly confusing what seemed like one species with two—or even five.
