Seven or more human types inhabited the planet before homo sapiens

[S.O.T.T}: For the past ~40,000 years, Homo sapiens — modern humans — has been the only Homo species on Earth. But for most of our history, there were close evolutionary cousins of ours, human but not quite like us, coexisting and evolving at the same time in different regions.

Some of our now-extinct relatives, such as the Neanderthals, are well known. Others, like the recently-discovered Denisovans or Homo naledi have hardly made it into textbooks yet. And hints of even more human forms have been found in incomplete fossils and genetic patterns, although these relatives are poorly understood. Modern humans were just one of many variations on the Homo theme.

Now, as cutting-edge techniques uncover new evidence and reassess old finds, we're closer to knowing how many types of humans coexisted with our ancestors ...read more>>>...