Tibetan wild yak (Tib: Drong), the third largest land mammal in Asia, could be making a comeback following a sharp decline in numbers in the mid 20th century due to overhunting. Reported by the Wild life conservation Society which has found out nearly 1,000 wild yaks in the Kekexili Nature Preserve on the remote Tibetan plateau recently. The now endangered species, fifty years ago, roamed the entire Tibetan plateau, managing to sustain themselves on the stunted grass roots at elevations up to 17,500 feet.