The Harry Potter movies featured a wide variety of exciting magical elements such as spells, potions and even creatures. J.K. Rowling, author of the Harry Potter books, managed to incorporate magical creatures which quickly became a huge part of the Harry Potter universe. From the chaotic nifflers to the graceful unicorns, magical creatures in Harry Potter possessed their own personalities and some even became loyal companions for certain characters.
Source：https://www.cbr.com/most-loyal-creatures-harry-potter/
