In the past day and a half I've heard of two dramatic rescues involving humans and dogs. Yesterday in Parsippany two women who were searching for a lost dog found themselves in need of rescue when ...

Fossilized bones from an extinct, shelled mammal offer us the latest clue about when humans arrived in South America. Scientists have long argued over when people first set foot on the continent ...

Archaeologists say they have found the oldest known instance of fire setting, a key moment in human evolution.