A griffin is a half- eagle- half- lion creature, which are commonly mistaken with a hippogriff, a half- eagle- half- horse creature. Griffins are Gryiffindoor's mascot, the Gryiffindoor house was created by Godric Gryiffindoor. One of the founders of Hogwarts. Griffins have front arms of an eagle, and legs of a lion, with an eagle head and torso, and a tail of a lion.