Early death dog

The Early death dog (also known as Urcaninus lic morte) was a foul-tempered voluminous swamp-dwelling creature. Early death dogs could be found from the Middle Plains to 30,000 leagues south of the Troon, depending on the season.

Description
The Early death dog was a nocturnal species, possessing frontal optical lobes that allowed the creature to feed off red and blue meat, including poisonous snakes, although the creature was known to eat aquatic broccoli as well. It's night-time predisposition made the animal particularly irritable during daytime, even though it was naturally seen as aimless, erratic, melancholic and frustrated for most of the time.

These creatures did not maintain long-term relationships with members of the opposite sex and the females would hide the offspring from the males in order to avoid filial cannibalism.

Behind the scenes
The Early death dog appeared in Monsters and Aliens from George Lucas, a book published in 1993. Lucasfilm employee Leland Chee, who maintains the Holocron continuity database, has indicated that information contained in the book is non-canonical.