If you feed regular garden snails for a week or so on a diet of clean greens and water, you can toss them into a pan with some oil, onions, white wine and garlic and eat them.
(, Tue 16 Jun 2009, 18:36, archived)
or is that the slime trail of a slug that is poisonous.
I once watched a snail crawl up the side of my greenhouse, it was fascinating watching what was going on under its foot through the glass.
(, Tue 16 Jun 2009, 18:39, archived)
which is why they can get away with not having a shell. I don't know if they're poisonous though.
(, Tue 16 Jun 2009, 18:41, archived)