Martha:
>All this speculation may be all wet if we are mainly adapted
>to the tropics, where, (I'm guessing) the seasons are not so
>pronounced and things are generally more available all year.

There are clear seasons in tropical areas. It is something of a myth
that
one can just eat luscious tropical fruit year-round in the "wild"
tropics--especially humans who pretty much suck at tree-climbing
relative
to many other primates.

Cheers,
Kirt

Secola  /\  Nieft
[log in to unmask]