Proteins, Apes & Us (Introduction)

by David Turell , Sunday, April 15, 2012, 15:35 (4606 days ago) @ dhw

DAVID: The first hominins were tree-dwelling and entered the savannah when their uprightness allowed it. Key alteration in evolution theory: Upright BEFORE savannah.->dhw: However, supposing the innovation (i.e. the mutation to uprightness) was not random but was a direct response to environmental pressure? Then we have a very different scenario. As I've suggested in earlier posts, one or more localized events in isolated areas might have destroyed the forests and changed them into savannahs. In order to survive, the monkeys HAD to come down from the trees. -And having to stoop over to walk on their knuckles how would that work in the savannah? The arms remained long until Lucy at two-three million years ago. You must think of whole body adapations. The fossil hunters also study paleoenvironment. No one has proposed your scenario of an earlier savannah. I think your thinking has taken you down a rabbit hole. Granted your reasoning is reasonable, but, if we can trust the science, it didn't happen your way