A gazelle is one of many antelope species in the genus Gazella. There are also seven species included in two further genera; Eudorcas and Nanger, which were formerly considered subgenera of Gazella. A third former subgenus, Procapra, includes three living species of Asian gazelles.
Gazelle
Byzantine-era mosaic of gazelle in Caesarea, Israel
Grant's gazelle (male)
Mhorr gazelle
The term antelope refers to numerous extant or recently extinct species of the ruminant artiodactyl family Bovidae that are indigenous to most of Africa, India, the Middle East, Central Asia, and a small area of Eastern Europe. Antelopes do not form a monophyletic group, as some antelopes are more closely related to other bovid groups, like bovines, goats, and sheep, than to other antelopes.
Antelope
A bull sable antelope among the trees in the African savanna
Illustration from The History of Four-footed Beasts (1607)
Blue duiker (Philantomba monticola) skeleton on display at the Museum of Osteology.