Science is a candy corn lab rat. It is in a cage on Prince Gumball's table. It was trained to perform complex scientific related tasks. Fionna releases it out of the cage for it make the zombie formula that cures all the zombies. At the end, it is awarded a medal from Prince Gumball for saving the Candy Kingdom.
Science looks like a candy corn with ears, an orange nose, feet, and a long yellow tail.
- Although Fionna nearly died by covering herself in the antidote, Science received the medal. This was because Science made the antidote.
- It is implied that Science is a male, when Fionna asks Science, "What is it boy?"