Weird Animals

Box jellyfish are about the size of a grape.

Brainless Jellyfish Are Capable of Learning, Study Suggests

Scientists provide evidence that tiny Caribbean box jellyfish—which lack a central nervous system—can learn to navigate through mangrove roots

The rare all-brown giraffe was born in July.

See the Rare Spotless Giraffe Born at a Tennessee Zoo

The baby might be the only all-brown giraffe on the planet, as the last one on record was born in 1972

Hugh Gray's famous 1933 photo of a creature he believed to be Nessie

Loch Ness Monster Lovers Come Together for Biggest Hunt in 50 Years

Volunteers will convene in the Scottish Highlands armed with drones, hydrophones and other technologies

The snake's new enclosure is specially designed to help the creature avoid hurting itself.

A Rare Two-Headed Snake Is Back on Exhibit at a Texas Zoo

Pancho and Lefty, as the western rat snake is known, has now healed from an injury it suffered more than two years ago

The young swell shark glows under a blacklight. The swell shark's eyes have adapted to filter out other wavelengths of light so they can better see other sharks.

See the Baby Glow-in-the-Dark Shark Hatched at the Tennessee Aquarium

In coastal waters, swell sharks appear a glowing green color to other members of their species due to a special eye adaptation

The Los Angeles thread millipede (Illacme socal)

New 486-Legged Millipede Species Found Near Los Angeles

The discovery by two naturalists demonstrates that unknown creatures can lie "right below our feet"

A variety of saber-toothed animals have evolved to fill different niches.

Eight Menacing Saber-Toothed Creatures That Stalked the Earth Long Ago

From before the dinosaurs to the Ice Age, several mammals and their forerunners sported the iconic, curved teeth

Nihohae matakoi swam in waters off the coast of New Zealand around 25 million years ago.

These Prehistoric Dolphins Had Tusk-Like Teeth

The animals likely thrashed their heads back and forth to injure or stun prey with their unusual, horizontal teeth

The goal of naming different species is to make sure scientific names are uniform across different fields and research labs.

Why Some Scientists Want to Stop Naming Organisms After People

An international team of researchers wants to stop using eponyms. But the naming authorities won’t budge.

Brazilian reef octopuses, like other types of cephalopods, defend themselves against predators by inking and extending their mantles. 

Octopuses May Have Vivid Nightmares, Video Suggests

Costello, a male Brazilian reef octopus, had "bizarre" defensive outbursts while sleeping in a lab

This is the first documented rainbow sea slug in a rock pool in the United Kingdom.

Rare 'Technicolor' Rainbow Sea Slug Found in England

It's only the fourth record of the species in the U.K., and experts say it's a sign of warming waters due to climate change

A group of snailfish swims between 7,500 and 8,200 meters below sea level. The deepest fish was filmed at 8,336 meters under the surface.

Behold the Deepest Fish Ever Filmed

A juvenile snailfish was caught on video more than five miles below sea level in waters south of Japan

Snapping shrimp create an air bubble in the water when they clamp their claws shut.

These Young Shrimp Can Snap Their Claws as Fast as a Speeding Bullet

Juvenile snapping shrimp can achieve the fastest acceleration of any repeatable, underwater motion by a living thing, per a new study

Sharpshooters use an appendage called an anal stylus to catapult droplets of pee.

These Tiny Bugs Urinate by Flinging Droplets of Pee

Sharpshooters are the first example of “superpropulsion” in a living organism, according to new research

An artist's concept of Kumimanu fordycei and Petradyptes stonehousei

Fossils of a 340-Pound Giant Penguin Found in New Zealand

Paleontologists unearthed the bones of two new penguin species that lived 50 million years ago

Park rangers found Toadzilla while conducting track work.

At Almost Six Pounds, ‘Toadzilla’ May Be the Largest Toad Ever Found

Captured in a national park in Australia, the cane toad was later euthanized due to the invasive animal’s threat to the environment

Extinct trilobites called Walliserops trifurcatus may have been among the first creatures on Earth to engage in sexual combat, a new study finds.

This 'Jousting' Trilobite Might Be the First Known Creature to Fight for a Mate

Using a “trident” attached to its head, the arthropod may have competed for sexual dominance 400 million years ago

Defensive response of a male mason wasp to a tree frog

These Wasps Can Fight Predators With Their Spiky Genitalia

The insects jabbed their spines at hungry frogs in a similar way to how females sting

An illustration of a springtail jumping

Springtails Are Nature’s Tiny Gymnasts, Videos Reveal

The insect-like creatures that leap through the air with remarkable control might inspire new jumping robots

The giant sunfish found floating near Faial Island in the Azores archipelago

This 6,000-Pound Sunfish Is the Largest Bony Fish on Record

Fishermen and boaters spotted the colossal creature floating near the Azores islands last December

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