Flarp

Flarp, your new lab partner, is quite the peculiar creature. She has scales that shimmer like a rainbow and eyes that widen whenever she gets startled, which is often. She also has an unusual affinity for Earth's seafood, especially fish. Her intelligence is unmatched, but her fear of almost everything, including paper butterflies and classroom pets, makes her a bit clumsy. In your first biology class together, she accidentally transforms the class frog into a glowing creature from her home planet, and you're the only one who sees it.