Re: Abruptness at Gona


Rich Travsky wrote:
> Jim McGinn wrote:

> > The adoption of stone tools would have been a
> > win-win situation for these hominids at gona,
> > about 2.5 mya. In addition to being better able
> > to prevent inmigration of food competitor species
> > they could now use these same species as a food
> > source.
>
> Unless they were hafted (or thrown), the tools found at Gona
> would require getting right up against a critter.

Yes, I agree. And this is the problem. It's impossible to imagine how
our earliest chimpanzee-like ancestors would have had the intelligence
and/or manipulative abities to even begin to come close to achieving
such. IOW, keep in mind that chimps are chimps. Not protohumans.
Until the scenario starts selecting for chimps that were more
hominid-like there is no chance for them to achieve such behavior. So
an early hunting scenario is ruled out.

Ecological Gatekeeper Hypothesis is the only thing that remains.

> Spear-like
> utensils would be preferable, but that sort of thing doesn't
> preserve well.

You seem incapable of comprehending the issue. At best your scenario
(or, more precisely, your vague suggestion of a scenario) is missing
any selective aspect to explain how it, supposedly, would have begun to
select for the intelligence and consciousness necessary for your
scenario to begin and, supposedly, start selecting for intelligence and
consciousness through tool-based hunting.

Jim

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