Krauls are creatures from the hostile planet Mogadore. They are smaller than Piken and are described as stout bodied weasels.

They are used by the Mogadorians, along with Piken, as a weapon towards their enemies. Four sees these smaller, deadlier beasts attacking the children during the Mogadorian Invasion of Lorien.

They are also used on Earth during the Battle of Paradise High School and the Battle of Santa Teresa where they overwhelm and kill Olivia, another Chimæra from Lorien.