The Indian Blackbuck is considered to be the second fastest in the world next to the Cheetah. The blackbuck is also found in Western Nepal where there are 176 animals in 1991. There were more than 20,000 on record in Texas ranches, in 1988. On the Pampas on northwestern and central Argentina, more than 10,000 animals were available in th 1980's.
Blackbuck is a a medium size antelope, which is sexully dimorphic. The males at birth are brown without horns. However, with secretion of sexual hormone, males develop a pair of corkscrew horns and their body color changes to elegant black. The normal lifespan of a Blackbuck is about 12 to 15 years. The average weight of an adult male is 75-110 pounds wiht horns averaging a length of 14-18 inches. THe blackbuck also has unique white rings around its eyes.