Ms. Peginand

A penguin skeleton and one of the 3 teachers. She feels a strong rivalry. Ms. Peginand is the only girl teacher of the school. She's the teacher of the Pink Toad class.

Description
We also have Ms. Peginand, a penguin, presumably of the giant-size prehistoric variety, which would make her a Palaeeudyptinid. She teaches "Pink Toad" class, and she tends to be the boastful, competitive high-society type, always ready to one-up her coworkers. She also has that wonderful "female anime villain" laugh. I'm sure you know the one if you've watched enough Japanese stuff.