Umm, a duck *can* drown.  Easily.  You see, a duck likes to eat fish, so
they dive underwater to catch the fish.  If a duck dove for a fish in that
pool and got itself caught while underwater it would drown.

 Simple when you think about it.

Yes, yes, but ducks float. What that means to me is that ducks are going to
be better swimmers than any pig. If a duck can drown, a pig can drown.

QED

                           ---------------------
##   ## ##   ## #######  ##   ##  AKA Tom Jefferys, Time Lord for Hire
##   ##  #   #   ##   ## ### ###    "Have TARDIS; Will Travel."
## # ##   ###    #####   ## # ##  Wielder of ANVIL and SPAM! Breaking
### ###    #     ##  ##  ##   ##    the Rules of Fanfiction!
##   ##   ###   ###   ## ##   ## of UT      <wyrm@mail.utexas.edu>
Save the Bit Trees -- Conserve SPAM!         When in Rome...BURN IT!!!
                   Darwin was wrong: Man is still an ape!