SantasMagicalComfort comments on Why we have two nostrils instead of one big hole

submitted 11 months ago by yogthos@lemmy.ml to c/science@lemmy.ml

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[–] SantasMagicalComfort@piefed.world 1 point 11 months ago* (last edited 11 months ago) (1 child)

Is that similar to why we have a pee hole and a poop hole instead of one big combination hole?

[–] limer@lemmy.ml 4 points 11 months ago

Those two holes are a later evolution found only in some mammals, the therians, and not any other type of animals

But I don’t understand why

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