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194 - Simon Conway Morris on Convergent Evolution & Creative Mass Extinctions

Humans On The Loop

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The End Cretaceous Extinction and Mammals

Mammals have a whole suite of traits that allow them to take advantage of a bad situation. It's actually through the preparatory diversification of these lineages before a major disruption whether it's the diversity of the teeth and the jaw of a primitive mammal or the diversification of reproductive strategies across different kinds of mammals. So many of them are smaller and therefore less exquisitely sensitive to disruptions in the availability of caloric resources like brachiopods do.

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