All in all, it's not a popular sight. Before you slice, smush, or sprinkle that slug-take another look. This region boasts a spectacular number of slug species. Some are destructive. But others are quite nice, once you get to know them.
Slugs do well where it's wet.
They are mollusks, distantly related to oysters and squid. But, while sea-going relatives breathe through gills, slugs evolved a lung. Slugs never quite left the sea, you see. Their coating of slime absorbs water, keeping them moist. Slime also protects the slug-so well that it can crawl unharmed along the edge of a razor blade.