Bull, July 28, 2009 (Photo by Karl Batchelor; Source: Flickr)

Chimpanzee, April 12, 2006. (Photo by Owenbooth; Source: Flickr)

Golden monkey. Pogok-Eup, Yongin-Si, Kyeongki-Do, Korea; December 27, 2007. (Photo by Floridapfe; Source: Flickr)

Tiger at the Phoenix Zoo. Tempe, Arizona, USA; January 25, 2009. (Photo by Grant Brummett; Source: Flickr)

Lepard. Hoedspruit, Limpopo, South Africa; August 24, 2010. (Photo by Flash-Joerg; Source: Flickr)

Goat, January 11, 2010. (Photo by Koen Jacobs; Source: Flickr)

African painted dog, Caughall, England, UK; August 8, 2011. (Photo by Steve; Source: Flickr)

South American sea lion. Valencia, February 8, 2012. (Photo by Ger Art; Source: Flickr)