Talk:MYH16 gene
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[edit] Relatedness
I think it's worth mentioning that the smallness of jaws and the largeness of brains may not be related. The theory as I have usually heard it focuses on the width of the birth canal and claims that an unusually large-brained baby would have always been likely to have a troublesome birth up until the mutation for small jaws set in. But baby chimpanzees do not have especially large jaws, and if the jaw is even the widest part of the fetal head, it is so by a small margin. That is to say, humans and chimps develop differently with respect to jaw structure only long after birth, and the mutation for developing small jaws in itself would seem to have offered little additional space available for larger brains.
Could it be instead that the mutation happened by chance in a small isolated population, and then that caused humans to have trouble eating, so they had to learn to use fire to make their meat easier to chew? Or maybe fire came first, and then large jaws became unnecessary.
http://www.dovate.com/dovate/news/ChimpNeoteny.jpg
Haplolology 17:14, 12 December 2006 (UTC)
- It is too early to form any definitive conclusions. Fortunately for us, Carroll has said as much in print, so we don't have to commit original research to say so in the article. Kingdon (talk) 17:16, 31 January 2008 (UTC)
