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RE: Where do animal hibernation and fallen leaves really come from.

in #science7 years ago

This is highly unlikely, because there are no primates that hibernate. And our species originated in warm climates. When our ancestors migrated to colder regions, they underwent some genetic changes, the most notable one being pale skin to allow for more UV absorption abd adequate vitamin D synthesis, and very likely by the time they (and the Neanderthals as well) reached the Northern latitudes, they already were efficient tool users and skilled hunters and they made clothes. They would have had no reason to undergo a massive evolutionary change in so many systems, to evolve the capability to hibernate from scratch. Let alone lose it afterwards.