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First, they used their hands and teeth.
Then they found tools like sticks and stones and the hard and soft parts of the animals they killed for food.
Some of the cleverer members of the tribe noticed that the hard parts of their food could be used for even sharper and deadlier weapons.
An even more important development in the use of technology for hunting was the use of animal ligaments, springy fibers and other parts that allowed the storage of energy for later release with fatal consequences for their prey.
from Firstmate
