HS-LS4-4
Construct an explanation based on evidence for how natural selection leads to adaptation of populations.
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AnimalsWhen a species can’t stand the heat
When temperatures rise, New Zealand’s tuatara produce more males. With global warming, that could leave the ancient reptile species with too few females to avoid going extinct.
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LifeCaught in the act
Scientists observe some evolutionary speed demons as they adapt over the course of just a few years to new environmental conditions.
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FossilsA really big (but extinct) rodent
A rodent about the size of a bison once roamed the riverbanks of ancient Venezuela.
By Emily Sohn