Gerenuk are browsing ruminants, and, in Somaliland, are found in small family-parties, and feed more by browsing on the branches and leaves of trees and shrubs than by grazing.
The cannon-bones are remarkably short and wide, and in this respect differ from those of all allied ruminants, except the Tibetan takin.
The Bovidae, or hollow-horned ruminants, are represented by several genera of antelopes, and by species of true Bos - such as B.
The same conclusion is indicated by the absence from the Moluccas and Celebes of various other Mammals, Quadrumana, Carnivora, Insectivora and Ruminants, which abound in the western part of the Archipelago.
This, however, is not the whole of the past history of the muskox group; and in this connexion it may be mentioned that palaeontological discoveries are gradually making it evident that the poverty of America in species of horned ruminants is to a great extent a feature of the present day, and that in past times it possessed a considerable number of representatives of this group. One of the latest additions to the list is a large sheep-like animal from a cave in California, apparently representing a new generic type, which has been described by E.