Wild horses returned to nature

Breeding center in Xinjiang has boosted population of the endangered species

Fifteen Przewalski's horses, the world's only surviving subspecies of wild horse, were released into a nature reserve in the Xinjiang Uygur autonomous region on Sept 27, as part of efforts to protect the rare subspecies from extinction.

The group includes six stallions and nine mares, and for the first time researchers released five horses over 20 years old, equivalent to a person aged 70 to 80, according to Zhang Hefan, chief engineer of the Wild Horse Breeding Center based in Xinjiang.