Banteng (Bos javanicus)
Bulls have a darker pelage than adult females. Female and juvenile pelages are short-haired reddish-brown with a dark dorsal stripe. The females are much smaller and more slender in build than the males. Adult males and females can also be distinguished by the differences in their horns and the dewlap that males develop and muscular development of the neck and shoulders, which is absent in the females. Banteng weigh between 600–800 kg (1320–1760 lb), the males being closer to 800kg and females closer to 650 kg. They stand ~160cm (5.3 ft) at the shoulder and their length varies from 190 to 225 cm (6.3–7.5 ft). Their horns are slender, curved and connected at the base by a horn-like patch on the forehead, which is characteristic of Banteng. More developed in adult males up to 60 –75 cm. Males’ horns are branch upwards, forwards and are frayed at the tips, whereas the horns of females are short, tightly curved and point inward at the tips.
The average longevity is 14–17 years in the wild, and up to 26 years in captivity. Sexual maturity occurs between two and four years. Primiparity uknown. Banteng can reproduce every year; 1 or 2 calves will birth after a gestation period of 285 days. They wean their calves at 6–9 months.