The newly discovered group of 25 tiny bones, all from somewhere below the neck of the animals, are younger—roughly 54.5 million years old—but considerably more primitive than the oldest known primate ...

A tiny bone fragment recovered from Denisova Cave in Siberia caused a big stir last month, after scientists showed that it belonged to an ancient-human hybrid they named Denny, who had a ...

2001-08-05 04:00:00 PDT Porcupine Cave, Colo.-- Ancient, fingernail-size rodent skulls plucked from the dirt with tweezers are forcing scientists to rethink their assumptions about the arrival of ...