Hundreds of sharks have taken refuge in a Florida canal to escape the toxic red tide, an algal bloom sweeping the Gulf Coast.
Researchers found that dogs react differently to false information given to them by a misinformed human than they do to a human who is flat-out lying to them.
Do polar bears throw rocks at walruses' heads to stun and kill them, as centuries of anecdotes suggest? They might, scientists say.
Three periods of drought left an ancient watering hole littered with the bodies of horses, hippos and rhinos who gathered in search of moisture.
Scientists have found one of the world's rarest chameleons again after fearing the species was extinct due to shrinking forests.
Scientists discovered cracked tail vertebrae and a large, bony foot tumor in the fossil skeleton of a dinosaur that lived during the Cretaceous.
Researchers have uncovered a 310 million-year-old horseshoe crab fossil complete with an exceptionally rare example of a fossilized brain.
Polar bears are the largest bear species and are supremely adapted to their Arctic habitat, whether they are prowling the ice or swimming in the sea.
Scientists discovered a fossil graveyard of thousands of perfectly preserved starfish, sea cucumbers, sea lilies and other invertebrates in a UK quarry likened to a 'Jurassic Pompeii'.
Fossils from northwestern Canada may represent ancient sponges dating to 890 million years ago, making them the oldest known examples of animal life.
Whale watchers in Japan recently saw a pair of white orcas swimming side by side in a pod off the coast of Hokkaido.
Big cats are found all over the world, from Alaska to China, and each one is ferociously unique. Here are the nine biggest cats alive today.
Acclaimed horror director Eli Roth has a new documentary on a horrific subject: the shark finning trade.
Researchers have documented chimpanzees killing gorillas for the first time. The two fatal attacks were caught on film at a national park in Gabon, Central Africa.
Wild cockatoos have figured out how to open garbage can lids, and the practice is spreading due to social learning.
A near-complete fossil skeleton of an ancient reptile dates to 300 million years ago. It had a blunt skull for tunneling underground, and special scales may have helped it slither through dirt.