Antilla was a marsh planet once controlled by the Cylons under the IL Droid Specter. It was known to be inhabited by only a few humans but was habitable. It was home to unicorn-like animals. Although the Cylons did control the planet, the steam of the marshes and swamps made their gears rust, so they could move only slowly. Starbuck, with the help of the humans of Antilla, liberated the planet from Cylon control.