Over 50,000 expectant Tibetan antelopes have arrived at the Sweet-Water River in the Qiangtang Nature Reserve on the Tibetan Plateau to give birth.

The antelopes' population in the reserve accounts for 70 percent of the total. Wildlife scientists say nearly sixty percent of expectant antelopes have already given birth by the river.

Meanwhile, large troops of antelopes are also arriving at Sewu Snow Mountain, by the southern stretch of Sweet-Water River.

Experts say the area is a passage that antelopes must go through on their migration course. Due to recent efforts to protect the environment and strengthen legal measures against poaching, the number of Tibetan antelopes has risen.

The Tibetan antelope is listed as an endangered species by the World Conservation Union, with less than 75,000 left in the wild, compared to a million antelopes 50 years ago.

(CNTV.cn July 2, 2013)