As members of the subfamily Caprinae of the family Bovidae, muskoxen are more closely related to sheep and goats than to oxen; however, they are placed in their own genus, Ovibos (Latin: “sheep-ox”). The muskox is one of the two largest extant members of Caprinae, along with the similarly sized takin. While the takin and muskox were once considered possibly closely related, the takin lacks common ovibovine features, such as the muskox’s specialized horn morphology, and genetic analysis shows that their lineages actually separated early in caprine evolution. Instead, the muskox’s closest living relatives appear to be the gorals of the genus Naemorhedus, nowadays common in many countries of central and east Asia. The vague similarity between takin and muskox must therefore be considered an example of convergent evolution.