Is there any point in having 2 separate nostrils? why don’t we just have 1 large intake hole instead of 2? Wouldn’t it be more effective?
In: Biology
It allows for a directional sense, similar to hearing. Having 2 helps determine the origin of a smell, which was a lot more important when we weren’t the apex predator. It’s also helpful come spring time when allergies are bad, maybe one will be clear
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