I was watching a documentary on Netflix where I learnt that in harsh winters the Alaskan brown bears go into hibernation. isn’t it that just the cold blooded animals like lizards, snakes and other reptiles go into hibernation because they are unable to maintain their body temperatures during winter? plus they have hair on their body (fur) which protects their body (?).
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Harsh winter means that the bear is wasting more energy looking for food than that food can provide. Therefore it is more beneficial for the bear to just sit tight in a warm place and try spending as little energy as possible. Hence, hibernating. Most northern mammals and even some birds are capable of it to some extent. Humans can’t do it because we are all fairly recent immigrants from Africa.
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