- Worms: Slugs and worms are common inhabitants of moist soil environments. They usually co-exist peacefully.
- Insects: Many insects like beetles, spiders, ants, and flies can be found in the same environments as slugs. However, some insects may prey on slugs.
- Birds: Certain birds, such as songbirds and thrushes, may hunt and eat slugs.
- Amphibians: Frogs, toads, salamanders, and newts are amphibians that might occupy similar habitats as slugs and might occasionally consume them.
- Reptiles: Some reptiles, such as lizards and snakes, might hunt slugs as part of their diet.
- Mammals: Small mammals like shrews, mice, and voles may feed on slugs, depending on the environment and resource availability.
- Other Mollusks: Snails and other mollusks can share the same habitats as slugs, and they might compete with slugs for resources.