Highway to nobel - [engineering biotech]

AN ?ELEGANTLY SIMPLE? technique, as she describes it, is helping Professor Connie Mulligan of the University of Florida track down the answers to a question that has puzzled anthropologists for decades: how did humans leave the Horn of Africa region more than 40,000 years ago and ultimately colonise the world? The initial emigration from Africa shaped how humans settled into the populations that exist today, but there is little evidence of how it happened.