Our Mind-Boggling Sense of Smell

Re:Our Mind-Boggling Sense of Smell by ternaryoperator on Saturday October 17, 2020 @03:42AM (#24808192)

One fascinating thing about smell is that you can smell only on inhalations. On exhalations, the sensors shut down. Hard to figure out what the evolutionary benefit of that was. But so it is for humans, and I believe for most mammals.

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Re:Our Mind-Boggling Sense of Smell by de_Selby on Saturday October 17, 2020 @04:09AM (#24808324)

I suppose it makes sense, otherwise the smells from our breath and most recent meals digestion would mix with and confuse our sense of the smells surrounding us.

I'm definitely glad we have this feature first thing in the morning before brushing my teeth!

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Re:Our Mind-Boggling Sense of Smell by sojournerc on Saturday October 17, 2020 @09:30AM (#24809837)

Dogs noses have those slits in the side to move exhaled air out to the side without disturbing what's in front of the big nostrils.

Fun to watch this work when my dog is ratting for voles in the yard.

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