The study is published in the journal Science. The chart shows the relative ups and downs in species counts, telling scientists about the origin, diversification, and extinction of ancient life.

An extinct reptile species from 300 million years ago has offered insight into the evolution of mammal's teeth. This chart shows a glimpse into history, including the work conducted over a 50-year ...

Dr. Tyrone Lavery reports in a paper published in Evolution that two groups of leaf-nosed bats with vastly different body sizes that were thought to be separate species are an example of a rare ...

Researchers calculated the flight ability of more than 80 ancient cicada species to analyze their evolution over time. When you purchase through links on our site, we may earn an affiliate commission.

Beauty is in the eye of the beholder—even if that beholder is a barn swallow. Depending on where the birds live, some of them may favor mates with a paler chest color while others find a redder chest ...