Swamp slugs were giant gastropods native to Dagobah.
They had thousands of teeth and had 24 pairs of legs. Their orange eyes allowed them to see clearly beneath the murky, cloudy waters while the two antennae on the top of their heads allowed sonar to pinpoint exact location and objects. Swamp slugs were omnivores, eating anything organic that would they could fit in their mouths. The teeth, or radula, in the slug's esophagus would pulverize any plant or animal matter ingested into organic slime. It appears that some dragonsnakes managed to avoid this and tear their way out of swamp slugs, but it is not clear how. They would often get in fights with dragonsnakes, and when they did, the encounters were fatal to at least one contender. There may have been two variations of the species. One, despite being hermaphroditic, had to reproduce sexually. Each partner would lay hundreds of eggs, most of which were eaten by other animals. It appears that there were also swamp slugs that did reproduce asexually. These slugs gave birth to single offspring.