James Harrison is a hero.

[Paul in Qatar]

Linky

James Harrison is 74 years old. He has given blood almost a thousand times. Good for him.

But wait! There's more!

Mr. Harrison has a rare factor in his blood that is used to save babies whose parents have mis-matched Rh factors. (You remember that from biology class, right?)

He has saved about two million babies.

Now, doesn't that make you proud to be a human?

[Infovore]

Wow. That's one guy who never has to wonder whether his existence is justified!

[Ferret Herder]

Awesome mutation, man.