
Specialized Brain Cells Act Like a Compass
Most people don’t think about the mental process of recognizing locations. We just take it for granted.

Neanderthal Extinction Dilemma
How did Neanderthals go extinct? Four researchers from the Netherlands recently published the results of their computer-modeled human populations in the journal PLOS ONE.1 The findings show that small Neanderthal population sizes would have caused them to become extinct in just 10,000 years. How did Neanderthals survive the 400,000 years they were supposedly on Earth?