Sleen/Legends

The Sleen was a slow and omnivorous lizard native to Dagobah. A swamp forager, it ate insects and preferred a damp and dark environment. It hunted the swamps and forests for insects and then went back to its hollowed out log or hole in the ground.

During the Cold War, Sleen were also known to have inhabited the jungles of Dromund Kaas where they attacked unaware travellers. However sleens were minor predators in those jungles.

Behind the scenes
The real-life counterpart for the Sleen is a Monitor Lizard, more specifically a Water Monitor. A Water monitor was used to portray the species in the movie. Contrary to the fictional Sleen, Monitor lizards seem to eat mostly rodents, eggs, smaller lizards, and practically anything they can overpower.

Appearances

 * Star Wars: The Old Republic
 * Coruscant Nights I: Jedi Twilight
 * Star Wars Episode V: The Empire Strikes Back