On May 31, 8:19*pm, Andy Champ wrote:

IIRC Penicillin interferes with cell wall construction, and prevents
growth. *Ah...

http://en.wikipedia.org/wiki/Penicil...nism_of_action

But why wouldn't we be able to evolve resistance to bullets? *Toss
enough airgun pellets about, and we'll likely evolve thicker skins (or
faster reactions!) just the way we evolved sickle cell anaemia (gives
malaria resistance) and cystic fibrosis (Cholera).

And in time we'll become .22 resistant... DU cannon shells might take a
while though.

Bacteria of course do all this _much_ faster.

Andy

I'd have to remain sceptical of this idea! But it's an entertaining
thought!