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The Jackalope is a (non-real) animal that looks like a jackrabbit but it has antelope-like horns.
Scooby-Doo And The Alien Invaders
When Scooby-Doo and Shaggy Rogers were fighting the "last" Scooby Snack, the snack almost fell into a crack and a Jackalope appeared and sniffed it and the two thought those animals weren't real. It took the last Scooby Snack and ate it. The two ran after it for taking the last snack, but it ran into a dark cave, but the two didn't follow.
Later, a Jackalope looked at the sky and saw a shooting star.