> >
> Waht would be "optimal foraging" in the area where the species "human"
> developed - out of  primate predecessors?
> In the savannah, for 1-2 mio years?
> Optimal foraging would be digging out tubers - they are plenty,
nutritious.
> Or harvesting tree and bush fruits - nuts.Accessible to upright walking
> primates with stones to smash the shells.
> Maybe brains of leftover skulls from predator kills - if walking long
> distances in the savannah  could count as "optimal".
> What do you think?

 also fresh water life is very available ( they will for sure living on the
shore of fresh water bodies) like fishes shrimps mussells etc , then you
have all the aquatic birds easy to get by throwing stones at also all the
mamals coming to drink ( at their most vulnerable to humans or carnivorous )
and at last left over from carnivorous animals .
living at the edge of the savannah,  water and forest seems to me the ideal
place to forage animals and plants .

jean-claude