From Yuval Noah Harari's 'Sapiens': "[T]he first wave of Sapiens colonization was one of the biggest and swiftest ecological disasters to befall the animal kingdom." (thread)pic.twitter.com/Ay4pKL0K1u
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Upon arriving in North America, humans "encountered mammoths and mastodons, rodents the size of bears, herds of horses and camels, oversized lions and dozens of large species the likes of which are completely unknown today, among them fearsome sabre-tooth cats and giant sloths."
"South America had an even more exotic menagerie of large mammals, reptiles, and birds. The Americas were a great laboratory of evolutionary experimentation. . . ."
Within 2,000 years of humans setting foot, most of these species were gone. In North America, thirty-four our of forty-seven genera of large mammals disappeared. In South America, fifty out of sixty. So did thousands of species of smaller mammals, reptiles, birds, and insects.
Note that this was all millennia before the Agricultural Revolution, after which events like this repeated themselves many times. Fucking humans, man. Always fucking shit up.
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