Finding Happiness Like Snails

I love snails. After the rain in California, the damp earth drives them to the sidewalk. Usually in twos — they move along in parallel, but slowly. They are hermaphrodites. That means that each one has the requisite sex organs to function as both sexes. It must be very hard for them to get together as a couple. First they have to decide which one is going to be which sex that day.