The coating offers other protections as well. It allows slugs to travel unharmed across the sharp edge of a razor blade or piece of glass, and can thwart predators; the slug excretes thick mucus and humps its body up, making itself appear larger. When the slime comes into contact with a moist surface, it produces an anesthetic which causes the membranes to go numb.
The slime of the banana slug also lubricates the terrain over which they move, so they can travel more easily. When climbing a tree, a slug can drop back down quickly using a string of slime. Researchers have made unsuccessful attempts to reproduce slug slime, since it is one of the best natural glues, and has potential uses in medicine.
Ariolimax dolichophallus, a species of banana slug (dolichophallus meaning "long penis" in Latin) has the largest penis-to-body length ratio of any animal. The record-holding specimen had a body length of 6 inches (15 cm), with a phallus length of 32.5 inches (82 cm), well over five times the body length.
yall are jeeaalous