Never mind what the unofficial anthem of the American West says about buffalo roaming—this type of bovid is not found on U.S. soil. What we have stateside, making up the best-known herds in Yellowstone National Park and on Catalina Island, are bison.
Though bison are sometimes colloquially called buffalo, the two are biologically different, unconnected in their ranges, and can be told apart by a few distinguishing physical features. Here's everything you need to know about the two oft-confused families of ancient grazing giants.