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Re:What Made Early Humans Smart by ant6n on Saturday July 03, 2021 @10:17AM (#27721765)
Early humans used running for hunting, see persistence hunting.

Animals who hunt for food still need strategy. They hunt together, with few animals upwind pushing prey into a trap of waiting animals downwind. Predicting where prey will be while running is also very useful.

Re:What Made Early Humans Smart by est on Saturday July 03, 2021 @10:20AM (#27721789)
Running is important, but running is not prefered if you can quietly and easily kill animals. e.g. You catch fish with a trident, instead of running fish along the river.
Re:What Made Early Humans Smart by ant6n on Saturday July 03, 2021 @10:53AM (#27721976)
Persistence hunting does not work on fish. And human intelligence predated complex tools like tridents.