Why did humans evolve external noses that don't seem to serve any useful purpose - our smelling sensors are inside the head. Our noses are vulnerable to damage and the majority of primates and other mammals manage with relatively flat faces. (Continued) If we believe zoologist Desmond Morris, the shape of the human nose is one of many unique features of the human anatomy that lack obvious purpose, but that most probably exist to respond to stimulation in one way or another to facilitate sexual pair bonding.
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