Evolution

Mice with the human version of a gene can run for longer without becoming fatigued 

A fossil tooth hints at a startling interaction between an ancient shark and a flying reptile.\

Paleontologists are still puzzling over why dinosaurs succeeded while crocodile cousins faded away

The skeleton of a new carnivorous dinosaur bears damage caused by seagoing invertebrates

Peafowls' head crests are specifically tuned to the vibrations produced by feather-rattling male peacocks, thus acting as a sort of antenna. Jason G. Goldman reports.

The Bahia's broad-snout casque-headed tree frog needs a pool to raise its young that's just right.

The structure has potentially been used as a place of worship for thousands of years

They beat birds at powered flight. Were they also a step ahead with feathers?

Starting December 16, ocean scientists will live-tweet the BBC documentary series Blue Planet II, available via Netflix.

Enormous genomic analysis yields tantalizing insights into mechanisms behind conditions such as schizophrenia and bipolar disorder

Millions of years from now, the geologic record of the "Anthropocene" will be littered with plastics, yes, but also chicken bones. Christopher Intagliata reports. 

Sabercat skulls hint at the different ways these carnivores tackled their prey