Costasiella kuroshimae—also known as a "leaf slug",[1] or "leaf sheep"[2]—is a species of sacoglossan sea slug. Costasiella kuroshimae are shell-less marine opisthobranch gastropod mollusks in the family Costasiellidae.[3] Despite being animals they indirectly perform photosynthesis, via kleptoplasty.[4]
Just look at that little homie.
It's so pretty