The November full Moon is commonly called the Beaver Moon because it has long been associated with beaver activity in preparation for winter, and because beavers were historically hunted for their fur around this time. Different cultures used the Moon’s monthly appearance as a calendar marker, and November’s Moon became linked to beaver behavior and fur trading, which contributed to the nickname. Variations of the name exist, with some sources also calling it the Frost Moon, and there’s ongoing discussion about the precise origins among Indigenous communities, colonial sources, and modern folklore.