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But what goes up must come down – those huge populations will be unsustainable in the long term once the food that humans left behind has been consumed. The reverberations throughout the food web caused by the disappearance of humankind may still be visible as much as 100 years into the future before things settle down into a new normal. Some wilder breeds of cows or sheep could survive, but most have been bred into slow and docile eating machines that will die off in huge numbers.“I think they will be very quick pickings for these feral carnivores or wild carnivores that are going to start proliferating,” says Weisman.
How Human Extinction Would Change The Earth
But what goes up must come down – those huge populations will be unsustainable in the long term once the food that humans left behind has been consumed. The reverberations throughout the food web caused by the disappearance of humankind may still be visible as much as 100 years into the future before things settle down into a new normal. Some wilder breeds of cows or sheep could survive, but most have been bred into slow and docile eating machines that will die off in huge numbers.“I think they will be very quick pickings for these feral carnivores or wild carnivores that are going to start proliferating,” says Weisman.