In Richard Dawkin's The Ancestor's Tale, he mentions the 50/50 split on
Humanity's ability to curl our tongue into a tube.  Might there have been a
reason for this trait, or its' absense?  Or is this just likely an example
of a minor mutation that is advantageously neutral?  Or something else?  TIA
Regards, Brett Aubrey.
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 * RgateImp.MoonDog.BBS at 11/6/04 6:11:43 AM