Tiny mammals and a group of lizard-like reptiles shared a trait that helped them survive extinction. 66 million years ago, after an asteroid slammed into the Earth and wiped out the non-avian ...
The Open Mind is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and ...
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