zebu: domesticated ox having a humped back and long horns and a large dewlap; used chiefly as a draft animal in India and east Asia
brahman: any of several breeds of Indian cattle; especially a large American heat and tick resistant greyish humped breed evolved in the Gulf States by interbreeding Indian cattle and now used chiefly for crossbreeding
tarzan: (sometimes used ironically) a man of great strength and agility (after the hero of a series of novels by Edgar Rice Burroughs)