Males are larger and have different coloration and horn structure than the females. Himalayan tahrs range from 135 to 180 kg in weight, 120 to 170 cm in length, and 60-90 cm in height. They are herbivores, subsisting on grass, shrubs and trees. The gestation period is seven months and usually only one kid is born at a time. The young tahr nurses for about six months, and may follow its mother for up to two years. In the wild, tahrs can live up to 15 years, though ten years is more typical.