Quote:
Originally Posted by mikado
I'm not sure I see the problem. It wouldn't be necessary for any proto-human to be instantly all-omnivorous; only that those with a certain gene mutation would be getting better nutrition from the diet available to them by their circumstances. Darwinian selction then progressively weeds out those without. It doesn't have to be just one single gene - there may be a whole bunch that combine to determine digestion. Plus there's the presence of microbes in the gut of course. And to change diet it needs, I guess, not only digestion to change but also taste. So I think gradual shift is plausible.
|
Ok then, that i can understand. If there were certain selections of our ancestors who were able to eat other foods through a mutation and survived better then the rest when they dropped down from trees. It's when people argue that 'we adapted to the surrounding environment' which i do not believe to be a valid argument.