Magizoology (a portmanteau of "magic" and "zoology") is the study of magical creatures in the Harry Potter series. A person who studies Magizoology is known as a magizoologist. There are magizoologists who work in the Ministry of Magic, particularly in the Department for the Regulation and Control of Magical Creatures. One notable magizoologist is Newt Scamander, who in the universe of the series is the author of Fantastic Beasts and Where to Find Them, a textbook on magical creatures that is popular in the wizarding world. Rowling used Newt Scamander as her pseudonym for the real-life Fantastic Beasts. Other characters who study magical creatures include Newt's grandson Rolf Scamander, as well as Luna Lovegood who eventually marries Rolf, although these two have only been referred to by Rowling as naturalists.