Scientists tell us what we already know

Sort of.

The (terribly informal) verdict:

Believable: Iron Man, Batman

Unbelievable: The Incredible Hulk

Quote:

Now, many people are aware that the most incredible thing about the Hulk is the way his pants always stay on when he expands to ten times his original volume.

But did you also know:

The good superhero stories require only one miracle exemption from the laws of nature.

Oh.  You did?  Well then.

(via SciFi Scanner)