Sep 21 2011Save9/21/11Why the shape of the Americas was bad for human settlementAlasdair Wilkins37SaveThere's still a lot we don't know about the first human colonization of the Americas, particularly the exact timing,…
Jun 22 2011Save6/22/11Our most ancient hominoid ancestors first left Africa 17 million years agoAlasdair Wilkins24Save When modern humans left Africa roughly 100 thousand years ago, it was only the last of several waves of hominoid…
May 5 2011Save5/5/11We may have discovered humanity's parent speciesAlasdair Wilkins23SaveWe can trace our evolutionary heritage back millions of years, but it's surprisingly tricky to say with certainty…