sexy handaxe theory Paleolithic people made handaxes to show off their sexiness, argue some paleontologists Mark Frauenfelder
archaeology Prehistoric cave painters may have been hallucinating due to lack of oxygen David Pescovitz
timemachine This Day in Blogging History: Fibonacci drawers; Utensil skull; Toilets of games Cory Doctorow
health Where Do We Come From? Where Are We Going? The Ancestral Health Symposium 2012 Lindsay M. Starke