Anup Shah / Olive Baboon (Papio anubis) curious male investigating camera, Masai Mara, Kenya

Silke Arndt / Western rattlesnake (Crotalus viridis viridis), threat display, South Dakota, USA, September.

Pete Oxford / San Lucas marsupial frog (Gastrotheca pseustes) captive, occurs in Ecuadorian Andes.

Claudio Contreras / Grey fox (Urocyon cinereoargenteus) licking nose, captive, Mexico City

Edwin Giesbers / Barbary macaque (Macaca sylvanus) baring teeth as a sign of submission, Gibraltar Nature Reserve, Gibraltar,

Konrad Wothe / Jumping stick grasshopper (Apioscelis bulbosa) Panguana Reserve, Huanuco province, Amazon basin, Peru.

Staffan Widstrand / Bearded seal (Erignathus barbatus) hauled out on ice, Spitsbergen, Svalbard, Norway, September.

Anup Shah / Long-tailed macaque (Macaca fascicularis) juvenile sticking tongue out. Khao Sam Roi Yot National Park, Thailand.

Cyril Ruoso / Adult male Drill (Mandrillus leucophaeus) Pandrillus Sanctuary, Nigeria. Non-ex

Suzi Eszterhas / Proboscis Monkey (Nasalis larvatus) baby grabbing mother's nose, Sabah, Borneo, Malaysia

Denis-Huot / Two male Thomson's gazelles (Eudorcas thomsonii) fighting, Masai-Mara game reserve, Kenya.

Roland Seitre / Black-footed Ferret (Mustela nigripes) in burrow, North America