Three tiny Purgatorius teeth found in Colorado are helping scientists trace how early primates evolved and spread across North America.

"This is an insane amount of money. This is not within the scope of what's reasonable." ...

Sometimes Mother Nature shows off like she’s auditioning for a movie role, and Smith Rock State Park in Terrebonne is her Oscar-worthy performance. This geological wonderland looks like someone ...

Their species name is well known, but until recently we’ve understood very little for certain about Homo habilis. Columnist ...