Slugs can feel pain but a slugs ability to feel pain is limited.
Slugs do feel pain but only slightly and not as bad as humans and other animals do.
Slugs have a simple nervous system therefore their ability to feel pain is limited.
Slugs mate by inserting their penis into the other slug to insert sperm to produce baby slugs.
In order to mate the slugs lower themselves on a mucus rope, while entwining their bodies in a strictly anti-clockwise fashion.
Both slugs then push out and entwine two overly-sized penises from openings on the side of their head, before exchanging sperm that may later fertilize each of their eggs.
Or, perhaps be eaten.
Slugs are hermaphrodites which means that they can reproduce with both males and females.
Slugs only need to find a mate to exchange sperm with to reproduce.
Slugs have evolved for many years and have become hermaphrodites.
Slugs only need to mate, and either or both parties can become pregnant.
Slugs are both good and bad.
Slugs are good for the soil and good for the environment although slugs can also be bad in that they can harm humans, dogs and other animals through infecting them with a parasite worm and bacteria.
Slugs break down garden debris and turn it into nitrogen-rich fertilizer that enhances soil nutrition (similar to worm composting).
The slugs are also are a natural food source for many beneficial insects, birds, frogs, snakes, and toads.