Re: milk and human sociobiology

Robert Snower (
Wed, 22 Jan 1997 16:35:09 GMT (Gerold Firl) wrote:

>Here is an interesting question: did the genes for lactose tolerance
>diffuse outward from a single source, or did evolution locally select
>for it in areas where cattle were kept for meat? Actually, both
>processes undoubtedly occured, but which was faster?

To me the more interesting question is, why did the lactose
intolerance develop? And when? And why was it adaptive?

Best wishes. rs