Why do snails appear after rain?

Because, they like to come out in the rain.

I don't think so! Snails, grubs, and earthworms come out of the ground after a rain,

even though they know that in doing so they're exposing themselves to their natural

enemies such as birds, for whom they constitute a large and tasty dinner, because

they can't breathe in saturated ground, and they have to come out to avoid drowning !