I always thought it was suspect that everything big and tasty, and everything dangerous died out due to climate change right at the exact moment that well armed humans arrived, while all the less dangerous and less tasty animals survived the climate change

Australia’s swamp monster diprotodon (very like a hippo) died out coincidentally as modern humans arrived — thousands of years away from when climate change killed mammoths and smilodon when h. sap turned up

I’m not surprised to see that paper