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illustration of a saber-toothed, cat-like predator in a rainforest

Mysterious 'hypercarnivore' with blade-like teeth roamed California 42 million years ago

By Nicoletta Lanese published

The hypercarnivore may have hunted tapirs and tiny rhinos.

Researchers believe at least one species of microscopic nematode worms are capable of making complex decisions.

These 1-millimeter-long worms can make complex decisions with a mere 300 neurons

By Harry Baker published

A new study has revealed that the nematode worm Pristionchus pacificus is capable of making complex decisions about predation and feeding despite having only around 300 neurons.

A coral catshark (Atelomycterus marmoratus) rests on a bed of corals in Indonesia with its eyes wide open, but is it sleeping?

Sharks do actually sleep, and sometimes with their eyes wide open

By Harry Baker published

A new study has provided the first evidence that sharks are capable of catching some zzz and has revealed that they can do so without closing their eyes.

A close-up of the head of a dromedary camel is shown at the Wroclaw Zoological Garden in Poland.

Escaped petting zoo camel attacks and kills 2 men in Tennessee

By Jeanna Bryner published

A camel attacked and killed two men outside of Memphis, Tennessee, after escaping a petting zoo Thursday (March 10).

Some of the bags of snakes and lizards the man hid among his clothing.

Man caught at Mexican border allegedly had more than 50 reptiles stuffed into his clothing

By Harry Baker published

U.S. border officers have caught an accused wildlife smuggler allegedly trying to cross from Tijuana to San Diego with nine snakes and 43 horned lizards stuffed into his clothes.

Silky sharks (Carcharhinus falciformis) gather in spring to mate in waters near the island of Roca Partida in Mexico.

Threatened sharks are turning up in pet food, DNA testing shows

By Mindy Weisberger published

Scientists identified shark DNA in pet food products, none of which listed shark meat in the ingredients.

An illustration of the 328 million-year-old vampyropod named after President Joe Biden (Syllipsimopodi bideni).

Ancient 10-armed vampire squid relative named for Joe Biden

By Laura Geggel published

A 328 million-year-old cephalopod may be the oldest in a group related to octopuses and vampire squids.

Social spiders in the species Anelosimus eximius live in colonies that may include hundreds of individuals.

Spiders hunt in packs of hundreds to swarm prey

By Cameron Duke published

Pack hunting spiders use web vibrations to coordinate their attacks.

The fossilized plastron (left) and carapace (right) of the newly discovered turtle's shell.

Ancient Transylvanian turtle survived the extinction of the dinosaurs

By Harry Baker published

A new study into the fossilized remains of an ancient turtle in Romania has revealed a brand-new species that managed to survive when the nonavian dinosaurs could not.

A close-up photo of a wolf spider.

Wolf spiders: Behavior, bites and other facts

By Jessie Szalay published

REFERENCE Wolf spiders are a large family of hairy and athletic arachnids that chase down prey on the ground rather than catching food in webs.

REFERENCE
The invasive species is harmless to people, but as an invasive species their impact on the local ecology still needs to be studied.

Millions of palm-sized, flying spiders could invade the East Coast, scientists say

By Ben Turner published

Scientists believe that Joro spiders arrived in the U.S. as stowaways in a shipping container.

An illustration of the Volkswagen Beetle-size stegosaur Bashanosaurus primitivus.

Tiny-headed stegosaur with long tail spikes is one of the oldest of its kind

By Laura Geggel published

A newly described Jurassic stegosaur species from China is one of the oldest of its kind.

The rear end of Araneus praesignis, an orb-weaving spider found in Australia, displays prominent markings that look like eyes, earning it the common name "Alien Butt Spider."

Anal bulbs, detachable butt hairs and booty camouflage: Welcome to #InverteButtWeek on Twitter

By Mindy Weisberger published

Invertebrate butts are both diverse and bizarre, and are being celebrated on Twitter in art, photos and video.

left panel shows a photo of a noble false black widow spider in a web on the side of a house; the right panel shows a bat pup entangled in said web

False widow spider preys on baby bat in never-before-seen encounter

By Nicoletta Lanese published

Before now, the species had never been seen catching bats.

The zombie-like mummified shark which was discovered in the abandoned aquarium.

Haunting images of 'zombie' shark and other decaying aquarium animals revealed in eerie footage

By Harry Baker published

A new video posted by a French urban explorer has revealed a number of decomposing marine animals, including a mummified shark, inside an abandoned aquarium in Spain.

A green Anaconda sunning itself on a tree branch

Anaconda: Habits, hunting and diet

By Jessie Szalay, Callum McKelvie published

Reference Everything you wanted to know about Anacondas including size, types, and conservation.

Reference
Hamsters

Hamsters: Diet, habits & types

By Alina Bradford, Ailsa Harvey published

Reference Hamsters are small rodents that are commonly kept as house pets.

Reference
A mole emerging from underground

Moles: Habitat, habits and conservation

By Alina Bradford, Callum McKelvie published

Reference Fascinating facts about moles, including their diets, habits and habit and conservation status.

Reference
The brown snake, Pseudonaja aspidorhyncha

Brown snakes: Facts, characteristics, habitat and diet

By Jessie Szalay published

Reference North American brown snakes are nonvenomous, unlike the Australian variety, which is among the most venomous in the world.

Reference
Black and white cat hiding in a box_ALFSnaiper via Getty Images

Why do cats love boxes so much?

By John Arnst published

It's an instinctual behavior for cats to seek out confined spaces, such as boxes, bags and baskets — Live Science explains why.