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We would become extinct. The only reason we evolved as a dominant species was because we had more powerful brains, as well as specially developed thumbs, to make tools to hunt, and later, learn how to grow crops. Take the ability to make tools away, and we would have to run after prey to catch and eat them, or climb trees to eat fruit. We wouldn't last very long as there are many species which are better than us at doing those activities.

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12y ago

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