How many early human species existed on Earth? – Livescience.com

We Homo sapiens didn’t used to be alone. Long ago, there was a lot more human diversity; Homo sapiens lived alongside an estimated eight now-extinct species
of human about 300,000 years ago. As recently as 15,000 years ago, we were sharing caves with another human species known as the Denisovans
. And fossilized remains indicate an even higher number of early human species once populated Earth before our species came along.
“We have one human species right now, and historically, that’s really weird,”…

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