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Welcome to Stuff to Blow Your Mind from How Stuff Works.com.

Hey, welcome to Stuff to Blow Your Mind. My name is Robert Lamb, and I am Christian Sager.

Hey Robert, I want you to hit me as hard as you can.

Alright, here it goes. You hit me in the ear. I'm sorry, I'm sorry.

No, no, that was perfect. Are you okay? Hit me again.

No, maybe later, man, we've got an episode to record.

So as you may guess from our little fight club, homage there, this episode is about the evolution of punching, in particular, fists and human beings, and how we evolved in the theory that our hands specifically evolved so that we could fight each other.

Yeah, in particular, this is the theory that's been put forth by biologist David Carrier from the University of Utah, and he's done a number of different studies and that published a number of different papers supporting this theory.

And what do you agree with it or not? He makes some, he just makes a wonderful case for it. He's committed to this theory.

Yeah, I want to say he has like what, five academic papers published all about different parts of the body, but all around this theory.

Yes, the most recent of which just came out in the last couple of months. And in fact, we have done how stuff works video about it that you wrote and starred in, and there's a little like article accompanying it, yeah?

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