Science Memes

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evolution (mander.xyz)

submitted 9 months ago by [email protected] to c/[email protected]

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[–] [email protected] 13 points 9 months ago (1 children)

The reverse of this is camels: they fitst evolved their adaptions to survive the cold, not the desert.

[–] [email protected] 25 points 9 months ago (1 children)

That isn't the reverse, it's the same deal - adaptations to one place turn out to be beneficial in another. Also, the desert IS cold at night, no?

[–] [email protected] 8 points 9 months ago (1 children)

Arctic deserts are also a thing (e.g. Iceland). The similarities tell the whole story:

Poor access to liquid water
Need to insulate body from temperature extremes, wind
Food sources are sporadically available at best
Need to minimize contact with ground or insulate feet

This is not to suggest that polar bears are similarly adapted to the Sahara. Rather, it's not a huge shift, but it's still a change.

[–] [email protected] 3 points 9 months ago

in a similar vein rainforests do not have to be tropical, there are several temperate rainforests in europe of which the southwestern norwegian coast is apparently one