"This is the most favoured habitat of the GOITERED GAZELLE (Gazella subgutturosa), Persian Ahoo. It is found in the plains of Khuzistan in the south-west, the plains of Zanjan in the north-west and Khorosan in the north-east and the Sistan plains in the south-east.
"In the drier parts of the centra desert is found the JEBEER (Gazella dorcas fuscifrons) and very occasionally the two species can be seen together. A small population of the goitered gazelle is found on Kharg Island in the Persian Gulf.
"The ahoo is an extremely elegant and beautiful animal, being about 75 centimetres high and weighing up to 50 kilogrammes. The males have a pair of slender pointed horns, bending slightly outwards at the tips. The females are usually hornless, but there is a small population of horned females in the west of Iran.
"As mentioned previously, the Jebeer Gazelle lives in the arid region of the central Khavir. Smaller than the ahoo, it weighs up to 25 kilogrammes. Both sexes have horns and the species is only ever found in small groups of 20–30, unlike the ahoo which may run in herds of hundreds." —Patrick Humphreys, Esmail Kahrom, Lion and Gazelle: The Mammals and Birds of Iran (I.B. Tauris, 1999), 59–60