Gazelles are known as swift animals – some are able to run at bursts as high as 60 mph (97 km/h), or run at a sustained speed of 30 mph (48 km/h). Gazelles are mostly found in the deserts, grasslands, and savannas of Africa, but they are also found in southwest and central Asia, and the Indian subcontinent. They tend to live in herds and will eat less coarse, easily digestible plants and leaves.Gazelles are rather small antelopes, most standing 2–3.5 ft (61–110 cm) high at the shoulder, and are generally fawn-colored.The gazelle genera are 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.
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