In a new study, scientists look closely into “chemical fossils” in rocks, indicating that sponges were alive more than 541 ...

Are buffalo and bison the same? How can you tell a toad from a frog? This article clears up confusion on mixed-up groups of animals.

Several species of birds from different continents use and understand similar alarm calls when they see an invader that might ...

The findings of a new study about communication between birds also offer key insights into the origins of language.