Description: English: Nubian Wild Ass, at the Berlin Zoological Gardens (1899). Date: 27 January 2013, 14:59:40. Source: Berlin Zoo 1899 guidebook. Author: Berlin Zoological Gardens.
Description: English: Somali Wild Ass from a specimen in Zoological Gardens, 1884. Date: 1895. Source: Tegetmeier, W. B. & C. L. Sutherland. Horses, asses, zebras, mules and mule breeding. London, H. Cox. 1895. Author: Uncredited.