Related topics: neanderthals · modern humans

Humans were once an endangered species

(PhysOrg.com) -- Scientists from the University of Utah in Salt Lake City in the U.S. have calculated that 1.2 million years ago, at a time when our ancestors were spreading through Africa, Europe and Asia, there were probably ...

Solving an age-old mystery about crystal formation

A million years ago, the oldest known species to walk upright like a human, the Homo erectus, had a human-like fascination with crystals. Historians can even pin down the possible reasons—crystals didn't look like anything ...

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