Tuesday, December 17, 2013

What Came First...

...the hand or the brain?

Our hands are unique. Apes, monkeys, even raccoons have hands, but they don't have hands like we do. We have the best hands - in fact, hands are part of what makes us human. There are structures in our hands that don't exist in, say, a chimp's hands.

Our hands are perfectly adapted for tool use. And we just pushed the modern hand back to 1.42 million years ago.

There's a theory that the hand may have come before the brain - that we actually evolved our complex brains and, ultimately, our intelligence, in order to better manage our clever hands.