Blue wildebeest

The blue wildebeest ("Connochaetes taurinus"), also called the common wildebeest, white-bearded wildebeest, white-bearded gnu or brindled gnu, is a large antelope and one of the two species of wildebeest. 
The blue wildebeest is known to have five subspecies. Young blue wildebeest are born tawny brown, and begin to have their adult coloration at the age of 2 months. 
Both sexes have a pair of large curved horns. The blue wildebeest is a herbivore, feeding mainly on short grasses.