Newly released video shows a gang of killer whales in South Africa attack and slaughter a great white shark.
Biologists studied Burmese pythons to see just how wide the snakes could gape their jaws to swallow large prey.
An ancient tiny reptile called "Scleromochlus taylori" gives a better look at the evolution of other ancient reptiles.
Researchers in China have discovered fossilized fragments of an ancient shark-like fish — the oldest jawed vertebrate ever discovered.
An armored "worm" from the Cambrian called Wufengella bengtsoni is the ancestor to three major animal groups that have totally different lifestyles today, a new study finds.
Paleontologists are unhappy that a T. rex specimen from Montana is hitting the auction block in Hong Kong in November.
A Chinese pet-cloning company has successfully cloned an Arctic wolf for the first time. The adorable pup is proof that cloning could be used to help save endangered species.
Researchers in Wyoming have named a new species of plesiosaur defined by its long neck and snappy jaws.
The largest head in the animal kingdom likely belongs to the blue whale, while the largest relative to body size comes from an unlikely source.
"Alien goldfish" from the Carboniferous had toothy tongue-like structures that resembled those in living mollusks, a new study finds.
A deep-sea fisher in Australia recently reeled in a creepy-looking shark with bulging eyes and a human-like smile. Experts are unsure exactly which species it belongs to.
A "donut" of mesmerizing cell-forming microtubules is among the top entries of Nikon's 2022 Small World in Motion Competition.
Lizards are a diverse group of reptiles made up of thousands of species around the world, including giant Komodo dragons and chameleons the size of your fingertip.
Researchers exploring the deep sea in the Caribbean have come across a mysterious "blue goo" that they can't identify.
With climate change, habitat loss, overhunting and more, which animals are at risk of extinction by 2050?