Interbreeding helped us get through the Ice Age: Sex with Neanderthals allowed early man to develop a stronger immune system
As the only human species left standing, Homo sapiens has clearly done something right.
Modern man has outlived the Neanderthals and other ancient humans, but not, it now emerges, without taking something from them.
In fact we might not still be here without having interbred with other humans, swiping their genetic material in order to survive through the Ice Age.
One of the most striking examples of interbreeding can be seen in Asia, where the EPAS1 gene from Denisovan humans helps Tibetans by making them less likely to become oxygen-deprived at high altitudes.
Now scientists at the... read more