Animals

The metamorphoses the creature undergoes are so dramatic, it took scientists a century to figure out its different forms belonged to the same zoological family.

A beach walker in the U.K. recently stumbled across a dead compass jellyfish with a juvenile fish trapped inside its bell.

A record-breaking female Nathusius' pipistrelle bat traveled more than 1,200 miles from London to Russia, where it was recently killed by a local cat.

Researchers have analyzed the mummified bodies of two extinct Ice Age lion cubs in unprecedented detail.

A pterosaur "dragon" that lived in Australia during the Cretaceous was the continent's biggest flying reptile, according to a new analysis of a fossil jawbone.

Meet the sheepshead fish, a common Atlantic coast swimmer with a very crunchy diet.

A dead minke whale that washed ashore in a Massachusetts town smells so horrible that authorities plan to cart it to a landfill.

Water bears may lack the proteins necessary for color vision.

A new study has predicted that emperor penguins could become functionally extinct by the end of the century due to melting sea ice.

If only our robots were as agile as squirrels.

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.

YouTube videos show that birds pull animal hair more often than previously thought.

The DNA hints at when and how ice age brown bears once migrated to Japan's largest island.

Three periods of drought left an ancient watering hole littered with the bodies of horses, giraffes 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.