Question

why did the early humans start making stone tools ? how did it help them from all their problems

Answer 1

Some chimpanzee communities are known to use stone and wood as hammers to crack nuts and as crude ineffective weapons in hunting small animals, including monkeys.  However, they rarely shape their tools in a systematic way to increase efficiency.  The most sophisticated chimpanzee tools are small, slender tree branches from which they strip off the leaves.  These twigs are then used as probes for some of their favorite foods--termites and ants.  More rarely, chimpanzees have been observed using sticks as short thrusting spears to hunt gallagos in holes and crevices of trees where they sleep during the day time.  It is likely that the australopithecines were at least this sophisticated in their simple tool use.

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