Wild Wonders of Europe / Shpilenok / Saiga antelope (Saiga tatarica) herd at salt lick, Cherniye Zemli (Black Earth) Nature Reserve, Kalmykia, Russia, May 2009

Jim Brandenburg / Moose (Alces alces andersoni) female looking in car window during winter, the animals lick salt off of cars, Minnesota

Jabruson / Western lowland gorilla male silverback "Faust" eating soil for mineral content in bai (forest clearing) Odzala NP, Democratic Republic of Congo. Died July 2004, probably due to Ebola virus.

Pete Oxford / Three species of Macaw on clay lick. Red & Green macaw, Scarlet macaw and Blue & Yellow macaw {Ara Chloroptera, Ara Macao, Ara araraunaon} Timpia clay lick, Urubamba River. Amazon Rainforest, Peru. S...

John Waters / African elephants at Dzanga bai (forest clearing) mineral lick Central African Republic

John Waters / African elephants dig for minerals at Dzanga bai forest clearing Central African Republic {Loxidonta africana}

Pete Oxford / Green winged macaws perched by salt lick. Madre De Dios River, Peru, Amazon, South America

Pete Oxford / Pierid Butterfly (Phoebis sp) group on mineral lick, Yasuni National Park, Amazon, Ecuador

Pete Oxford / Pierid Butterfly (Phoebis sp) group on mineral lick, Yasuni National Park, Amazon, Ecuador

Pete Oxford / Dusky-headed Parakeet (Aratinga weddellii) flock at clay lick feeding on minerals, Yasuni National Park, Amazon, Ecuador

Konrad Wothe / Red and Green Macaw (Ara chloroptera) flock at clay lick, Tambopata National Reserve, Peru

Kevin Schafer / Red brocket deer (Mazama americana) coming to mineral lick, Manu NP, SE Peru