Gazelles are rather small antelopes, most standing from 2 to 3,5 ft (60–100 cm) high at the shoulder, and are generally fawn colored.
The gazelle species are classified in the Gazella, Eudorcas and Nanger. The taxonomy of these genera is a confused one,
and the classification of species and subspecies has been an unsettled issue. Currently, the genus Gazella is widely
considered to contain about 13 species.[citation needed] Four further species are extinct – the Red Gazelle, the Arabian
Gazelle, the Queen of Sheba's Gazelle, and the Saudi Gazelle. Most surviving gazelle species are considered threatened
to varying degrees. Closely related to the true gazelles are the Tibetan and Mongolian gazelles (species of the genus Procapra),
the blackbuck of Asia, and the African impala and Springbok.
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