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[existenceproof]

Went to the dentist today. They think I was born without wisdom teeth, but aren't sure. They'd need more x-rays of the back of my jaw to see if there are any extra teeth hanging around. Usually after the cleaning the real dentist comes in for a second to say hi, and today I was going to ask him why humans have lips. I've been thinking about this a

Comments

[tywysoges]

...

What do you mean only humans have lips?

[existenceproof]

Our lips are distinguished from the rest of our mouths. You can unambiguously draw lines separating lips from the other parts of our face. Dogs do not have lips in this sense.

Follow-up observation: animals seem to either have face-lips and vaginal lips, like humans, or neither, like dogs and horses. Have you ever seen an animal, besides a human or monkey, with vaginal lips? I wasn't going to ask my dentist about that one, but it seems tied up in the larger lip enigma.

[tywysoges]

Horses, rhinos and many other animals have prehensile face-lips, way more useful than ours will ever be.

[tywysoges]

Also mares do have obvious labia.. you can see them "wink" when she's in heat.

Don't argue mammals, just love the lips.

[perkypinkgoth]

Re: Don't argue mammals, just love the lips.

[existenceproof]

that's all gum.