17
Why we have two nostrils instead of one big hole
(www.popsci.com)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 05 Dec 2025
17 points (100.0% liked)
Science
18375 readers
60 users here now
Subscribe to see new publications and popular science coverage of current research on your homepage
founded 6 years ago
MODERATORS
Is that similar to why we have a pee hole and a poop hole instead of one big combination hole?
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