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It was such a breakthrough because it proved evelution, on a certain level, true.

Walking upright meant that only the feet were needed for locomotion freeing the hands and arms for other purposes such as carrying while moving. The opposable thumbs allowed for easier manipulation of tools and other objects.

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Why did the ability to walk upright and development of the opposable thumb represent important breakthrough for early hominids?

It was such a breakthrough because it proved evelution, on a certain level, true. Walking upright meant that only the feet were needed for locomotion freeing the hands and arms for other purposes such as carrying while moving. The opposable thumbs allowed for easier manipulation of tools and other objects.


Why did the ability to walk upright and the development of the opposable thumbs represent important breakthroughs for early hominids?

It was such a breakthrough because it proved evelution, on a certain level, true. Walking upright meant that only the feet were needed for locomotion freeing the hands and arms for other purposes such as carrying while moving. The opposable thumbs allowed for easier manipulation of tools and other objects.


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