Published On: Mon, Nov 6th, 2017

If you enjoy sleeping at night instead of the day, thank the dinosaurs for going extinct – Los Angeles Times


Los Angeles Times

If you enjoy sleeping at night instead of the day, thank the dinosaurs for going extinct
Los Angeles Times
Mammals were largely creatures of the night until the dinosaurs were killed off by an asteroid some 66 million years ago, a new study finds. The findings, described in the journal Nature Ecology & Evolution, illuminate a pivotal transition in the ...

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