The Life of Animals | Yak | The tail is 70 to 100 cm (28 to 39 in) long in the wild yaks. Domesticated yaks are much Smaller, lazy Weighing 350 to 580 kg (770 to 1.300 lb) and females 225 to 255 kg (500 to 560 lb). Yaks are heavily built animals with a Sturdy frame, short legs, and rounded hooves. The horns of females are Smaller, only 27 to 64 centimetres (11 to 25 in) in length, and have a more upright shape. Both sexes have a short neck with a pronounced hump over the shoulders, although this is larger and more visible in males.
Especially in males, this may form a long "skirt" that almost reaches the ground. The tail is long, with a large plume of hair over much of its length. Wild yaks have typically black or dark brown hair over most of the body, with a greyish muzzle, although some wild golden-brown individuals have been reported. Domesticated yaks have a Wider range of coat colors, with some individuals being white or piebald. The udder in females and the scrotum in males are small and hairy, as protection against the cold. Females have four teats Yaks mate in the summer, typically the between July and September, Depending on the local environment. In Addition to a non-violent threat displays, bellowing, and scraping the ground with Their horns, male yaks Compete also more directly, repeatedly charging at each other with heads lowered or sparring with Their horns.
The female finds a secluded spot to give birth, but the calf is Able to walk within about ten minutes of birth, and the pair soon rejoin the herd. Females of Both the wild and domestic forms typically give birth only once every other year, although more frequent births are possible if the food supply is good. Wild calves are initially brown in color, and only later develop the adult Darker hair.
Yaks transport goods across mountain passes for local Farmers and traders as well as for climbing and trekking Expeditions. "Only one thing makes it hard to use yaks for Long Journeys in Barren regions. Yak milk is processed to a cheese Often Called chhurpi in Tibetan and Nepali languages, and byaslag in Mongolia. Yaks grunt, and unlike cattle are not known to Produce the characteristic bovine lowing sound.