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bigwavedave000 t1_j7sog1f wrote

Reply to comment by jclua001 in New species identified, from 3D models of prehistoric penguins’ humongous humerus, may be the largest penguin ever to have lived. ~350-pound ‘Kumimanu fordycei’ weighed as much as an adult gorilla; waded the waters off New Zealand about 60 million years ago by marketrent

I was thinking along the lines of more oxygen in the air or something fundamental. Theres lots of food now.

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clay12340 t1_j7sxqrl wrote

This is the leading theory. Higher levels of oxygen and huge land masses free of human development to roam on.

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HobgoblinKhanate1 t1_j7tjwtn wrote

It was always normal to have big animals we just killed most of them

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sewankambo t1_j7ul4v7 wrote

Yeah we killed the giant penguin 60 million years ago.

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HobgoblinKhanate1 t1_j7ur0rx wrote

I’m not talking about the giant penguin specifically. More large mammals than this have existed before and since

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CMGS1031 t1_j7w0ere wrote

And less less than 1% of them were killed by humans.

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