Claudio Contreras / American crocodile (Crocodylus acutus) split level with animal resting at surface in shallow water over seagrass bed, Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico

Denis-Huot / African elephant (Loxodonta africana) having a mud bath at a water hole, Tsavo East National Park, Kenya. August.

Wim van den Heever / Group of African elephants (Loxodonta africana) silhouetted at sunrise, Okavango Delta, Botswana.

Lou Coetzer / African elephant (Loxodonta africana) cow reassuring young calf with trunk, Chobe River, Botswana, October, Vulnerable species.

Anup Shah / African elephants (Loxodonta africana) wallowing in a waterhole. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Anup Shah / African elephants (Loxodonta africana) dust bathing. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Enrique Lopez-Tapia / Domestic Asian elephants (Elephas maximas) used for riding safaris with their keepers, Royal Chitwan National Park, Nepal.

Ann & Steve Toon / Elephant trunk (Loxodonta africana), Etosha national park, Namibia, May

Juan Carlos Munoz / Iberian pig with mud covered snout, Sierra de Aracena Natural Park, Huelva, Andalucia, Spain, Europe. Breed used to produce Iberico ham / Jamon Iberico

Jabruson,Jabruson / African Forest Elephant (Loxodonta africana cyclotis) mother playing with her calf. Dzanga Bai, Dzanga-Ndoki National Park, Central African Republic.

Axel Gomille / Asian Elephant (Elephas maximus), temple elephant gives blessings to pilgrims at the ruins and temple complex of Hampi, Karnataka, India

Anup Shah / Warthog female (Phacochoerus africanus) feeding with piglets. Masai Mara National Reserve, Kenya, October 2009