Maybe not.
An article by Regina and Douglas Haggo in The Hamilton Spectator drops an odd little tidbit in the middle of a comment on the much-talked about study that says Milk-Drinking Crucial to Human Evolution.
The availability of cows' milk turned a useless mutation into an invaluable one. Natural selection would favour people with the lactose-digesting gene switched on permanently, because they could profit from the calories, vitamins and minerals in milk.
Many European cat breeds show a similar mutation that allows them to enjoy milk as adults, while oriental breeds, like most Asian humans, are lactose-intolerant.
Is this true? Any cat-fanciers out there know the facts?
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