Well, of course they can't... :) But images are pretty cool...

Here are some funny words about flight...

Why can't humans fly?
Because Boeing and Airbus would have to go out of business, period.

Or...

Flying is easy! It's landing that's hard... :-)

Flight requires an animal's body to be heavily adapted, almost every part
of the body has to be changed to enable powered flight. The brain needs
extra prcessing power to deal with 3D calculations, eyesight must be keen,
the bones must be lightened, the gut must be reduced in size, the legs
need to be adapted for landing and takeoff, and of course wings must be
produced.

More Flight Images... HERE :)