A slug is a soft-bodied, gastropod mollusk that is similar to a snail but lacks a prominent shell. Slugs are typically found in moist environments, such as gardens and forests, where they feed on decaying plant material and other organic matter. They have a slimy texture due to the mucus they produce, which helps them move and retain moisture. Slugs are known for their slow movement and can be identified by their elongated bodies and tentacle-like structures on their heads. They play an important role in the ecosystem by breaking down organic matter, contributing to soil health, and serving as food for various predators, including birds and small mammals.