2007-08-23 04:20:57 · 3 answers · asked by sokrates 4 in Science & Mathematics ➔ Biology
It's sort of a combination of eating and speech, but more because of eating. If you notice, primates have lips, but they don't need to form all the syllables we do. So it resulted as a way to eat more diverse foods. Since we have opposable thumbs, we can pick up and move around food easier than a dog can, so we need easier ways to eat, and lips provide that.
2007-08-23 04:28:11 · answer #1 · answered by Jon G 4 · 0⤊ 0⤋
If you notice, cats do not have lips. Watch a cat eat and drink - they cannot sup liquid up, it has to be lapped, and the have to throw their heads back to hold the food in. Unless you meant the other kind of lips...
2007-08-23 04:24:52 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Try to talk with your lips rolled in. Why humans ? All primates have lips although they are not as prominent as humans. Lips are important for speech..........and also for kissing.
2007-08-23 04:25:19 · answer #3 · answered by ag_iitkgp 7 · 0⤊ 0⤋