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Gregory Cochran

Evolution's Deadly Tradeoffs? Diseases That Can Kill Us May Also Save Lives And Increase IQ

Jon Entine | Posted 05.21.2015 | Science
Jon Entine

Harmful mutations usually disappear because people who carry mutant genes often die at an early age or have difficulty in finding mates. But there are exceptions to the grinding work of nature: when a mutation offers some survival benefit.

What Do Cows' Milk And Thicker Skulls Have In Common?

Gregory Cochran | Posted 05.25.2011 | Books
Gregory Cochran

Note that old-style humans had much thicker skulls than we do today. Field researchers have actually mistaken fragments of a homo erectus skull for part of a turtle shell.