One hundred thousand years ago, several humanlike species walked the
Earth. There were tribes of stocky Neanderthals eking out an existence
in Europe and northwest Asia, and bands of cave-dwelling Denisovans in
Asia. A diminutive, hobbitlike people called Homo floresiensis inhabited Indonesia. What were essentially modern humans roamed Africa.
Then, about 60,000 years ago, a few thousand of those humans migrated
out of Africa. As they slowly moved into new territories over the
course of generations, they encountered the Neanderthals,
the Denisovans and the hobbit people — all of whom descended from
hominin groups that had left Africa during prior waves of migration. DNA
analysis shows the humans interbred with these strangers, but other
details of the encounters are lost to history. One thing is clear: only
humans remain. Read More...
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