If so, be happy that you weren't around 40 million years ago. Back then, Europe's climate was warmer and more humid, which provided favorable conditions for gnats, among other things. One of these ...

Opinions expressed by Forbes Contributors are their own. I write about the world of biology. Once found in the jungles of Africa, researchers in South America have now discovered links tying ..

A newly discovered whale that lived nearly 40 million years ago could be the heaviest animal to have ever lived, based on a partial skeleton found in Peru, scientists said on Wednesday.

A few fossilized body parts hinted at an enigmatic bird's close ties to waterfowl like ducks and geese. A newfound skull may bolster that idea.

but lived 195 million years ago in the Early Jurassic period. Called Hadrocodium wui, the little creature had certain key mammalian features 40 million years earlier than had previously been known ...

It also used its tail for swimming. Further along this evolutionary journey we find Dorudon, which lived 40 to 33 million years ago. This five-metre-long animal had proper flippers and tiny hind legs.

Butterflies have been recorded in fossils dating back to the mid-Eocene epoch, around 40-50 million years ago, although their origin is thought to be earlier. Lithopsyche is about 34 million years old ...