Stigorax

The Stigorax was a species native to Terra Alpha by the Time of the Happiness Patrol there was only left.

Biology
The Stigorax was a rat like creature that was a carnivore. They fed of humans and where feared by The Pipe People of Terra Alpha. But they where tameable as Helen A did Tame one down called Fifi. (DW: The Happiness Patrol)

History
The Stigorax where a native species on Terra Alpha who would have hunted the Pipe People. When the Humans came to Terra Alpha they where almost whiped out apart from one of them named Fifi. Fifi was tamed down by Helen A leader of the Happiness Patrol. Fifi did only obey the commands of Helen A and was sent to hunt people who opposed her. Fifi was killed when trying to hunt down the doctor and Helen A was Saddened by her death. (DW: The Happiness Patrol

This makes Fifi the last Stigorax to have exsited