During the Triassic period nearly 250 million years ago, a small reptile scurried after insects in the canopy of a lush ...

Over 500 million years ago, a small marine creature swam through Cambrian waters. Its name: Mollisonia symmetrica. Long ...

Millions of people suffer debilitating reactions in the presence of certain scents and chemicals. One scientist has been ...

Red meat allergy, or alpha-gal syndrome, was first reported in 2009 and is still relatively rare but is on the rise.

Finely preserved brain features in a tiny fossil suggest that spiders and their kin may have first evolved in the ocean ...

One of the creepiest, crawliest creatures of the Earth may have been swimming before adapting to live on land, new research suggests.

A new analysis of an exquisitely preserved fossil that lived half a billion years ago suggests that arachnids—spiders and ...