The fossas.

The Fossa are a race of wacky creatures from Madagascar. They were originally minor enemies who wanted to eat King Julien's lemur kingdom. But they were repulsed by the Madagascar gang and chased off for a while. The Fossa are were defeated by the Madagascar gang and the first to retreat due to their cowardness. They first antagonised Pooh and the gang in Winnie the Pooh Goes to Madagascar.