LYNN M. STONE / Donkey standing in snow covered field, Belvidere, Illinois, USA

John Cancalosi / Feral Burro / Donkey foal (Equus asinus) standing in long grass, Custer State Park, South Dakota, USA

LYNN M. STONE / Wild burro {Equus asinus} Arizona / Nevada, USA

Dietmar Nill / Man driving a Donkey cart filled with hay, Bulgaria.

Jose B. Ruiz / Extremaduran Donkey {Equus asinus} The Barruecos, Malpartida de Cáceres, Extremadura, Spain.

Wild Wonders of Europe / Geidemark / Donkey carrying a large hay load, Lake Prespa National Park, Albania June 2009

Tim Martin / Domestic donkey (Equus asinus) browsing on gorse bush. New Forest National Park, Hampshire, UK. May 2008.

John Cancalosi / Feral Burro / Donkey foal (Equus asinus) standing in long grass, Custer State Park, South Dakota, USA

John Cancalosi / Feral Burro / Donkey (Equus asinus) female and foal, portrait standing in long grass, Custer State Park, South Dakota, USA

John Cancalosi / Feral Burro / Donkey (Equus asinus) head portrait, Custer State Park, South Dakota, USA

John Cancalosi / Feral Burro / Donkey foal (Equus asinus) head portrait lying in long grass, Custer State Park, South Dakota, USA

Charlie Summers / Wild donkeys / Burros (Equus africanus asinus) fighting, Custer State Park, South Dakota, USA, September