A mystery that started with the discovery of a pinkie finger bone in Denisova Cave in the Altai Mountains of southern Siberia may finally have been cracked.

The year's top paleontological wonders ranged from a 540-million-year-old penis worm to a decades-old rodent impression.

A humungous shark that lived 115 million years ago surpassed the size of modern-day great whites, paleontologists discovered ...

Scientists trace an ancient microbe, Asgard archaea, that gave rise to humans, animals, and plants more than 2 billion years ...

Mammals keep evolving into anteaters, eating only ants and termites, at least 12 times since the age the dinosaurs.

Properly deciphering the branching pathways of evolution could unlock the history of every component of natural biology.

From baby teeth to ‘conveyor belt’ molars, here’s why humans—and other mammals –grow and replace their teeth in such ...