Ancient humans migrated out of Africa to escape a drying climate, says a new study—a finding that contradicts previous suggestions that ancient people were able to leave because a then-wet climate allowed them to cross the generally arid Horn of Africa and Middle East.
Paleontologists Are Unzipping Our Genes
Recently, paleontologists have used genomics to delve into the lives of ancient humans. These studies have capitalized on futuristic techniques to reveal the genealogy, travel plans and sex lives of our ancestors.
From fossil teeth to carbon traces of plants in the soil, scientists are studying how changes in climate may have influenced early human evolution in Africa. Researchers from around the world gathered for a symposium held recently at the Lamont-Doherty Earth Observatory. Watch the videos.