Horse researcher Hayato Shimizu says he has captured a photograph of a Central Asian horse that appears to be sweating blood, apparently confirming Chinese legends of a similar horse famed for its great speed.

Shimizu, 39, said he took the picture in the western Tian Shan mountain range in Central Asia last August. The photo shows what appears to be blood running from the animal's shoulder area.

According to Shimizu, the horse bled after running at full speed. The shoulder bulged before blood mixed with sweat ran down the horse's side.