A fossil feather from the age of dinosaurs offers a new clue to why bird lineages outlived the asteroid impact that killed the non-avian dinosaurs.
New isotopic evidence from Yukon fossils shows the extinct cat Miracinonyx was no cheetah, but a puma cousin with a surprisingly versatile diet.
Fossil bite marks reveal giant crocodylians, not mammals, ruled ancient South American ecosystem.
A synthesis of the latest breakthroughs in archaeology, paleontology, and biology, revealing hidden charcoal in cave paintings, human DNA in ancient art, and more.