These two Fast Biters (Deinonychus) appear in the climax of The Land Before Time XI: Invasion of the Tinysauruses, serving as threats to the kids, their guardians and the Tiny Longnecks . They are Fast Biters, a term used by the characters for dromaeosaurs, popularly known as raptors. One is blue and the other is purple in color. They both have red eyes and black stripes down their backs. They live in the Mysterious Beyond, perhaps in an area around the Great Valley.