The wild Tibetan beef (Tibetan: drong) can weigh up to 1,200 kg (2,520 lb) and has a head and body length of about 3–3.4 m. They usually form groups of 10 to 30. Its habitat is in the log-free highlands, such as hills, mountains and highlands, ranging from 3,200 m (10,500 ft) to about 5,400 m (18,000 ft). Physiologically, yaks are well adapted to high altitudes, have larger hearts and lungs than cows at smaller altitudes as well as a greater ability to transport oxygen through the bloodstream. The organ is difficult to live normally at small altitudes. They feed on grasses, lichens and other plants. They are insulated with a dense inner coat as well as by a long, shaggy outer coat. The yaks secrete a special slime in their sweat to keep the coat clear and act as an additional layer of insulation. This secretion is used in Nepali folk medicine. Many wild yaks have been killed for their meat by people and are now vulnerable species. In the past, the predator and eater of yak was the Tibetan wolf (Canis lupus chanco).
The yak is a herd, herd can consist of hundreds of individuals, although many herds are much smaller. In the herd are mainly females and their young, with a small number of mature males. The excess males are often solitary, or found in much smaller groups, averaging about six individuals. Although they can become aggressive when defending their offspring, or during bulls, wild yaks generally avoid humans, and can quickly flee for very long distances if any further occurs. Come on.
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