- "It's like the old saying; An eye for a tooth, a nose for a chin, a butt for a... well it's an old saying, but uh... it's not a very good one."
- ―Buck to the herd[src]
Trying to escape the large beast, Rudy, Buck, a weasel, was slashed in the eye, from the large claw of the Baryonyx. Buck scurried up a tree holding a stick as a weapon. He was swallowed by Rudy, but was able to swing out of his powerful jaws, and knocked a tooth out of Rudy's mouth in the process. He kept the tooth, making a dagger out of it.
Rudy's tooth, now made into a dagger, is a tooth on a wood handle, tied by vines.
- Ice Age: Dawn of the Dinosaurs (First appearance)
- Ice Age: Continental Drift (Similar Appearance)
- Ice Age: Collision Course