Eric Baccega / Coalition of two African male lions (Panthera leo) resting on the banks of the Luangwa river, dry season, South Luangwa National Park, Zambia
Ann & Steve Toon / Impala (Aepyceros melampus) allo-grooming, iMfolozi game reserve, KwaZulu-Natal, South Africa, August
Emanuele Biggi / Peruvian Tarantula (Pamphobeteus sp.) adult, walking over Humming Frog (Chiasmocleis royi) without preying on it. Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a com...
Tui De Roy / Galapagos lava lizard (Microlophus albemarlensis) sitting on Marine iguana (Amblyrhynchus cristatus) Punta Espinosa, Fernandina Island, Galapgos.
Jurgen Freund / Hand-reared Boongary (Dendrolagus lumholtzi) descending from a tree and climbing onto its carer's back, Atherton Tablelands, Queensland, Australia.
Jeff Foott / Yacare caiman (Caiman yacare) with butterfly on snout, Cuiaba River, Pantanal Matogrossense National Park, Pantanal, Brazil.
Tui De Roy / Waved albatross (Phoebastria irrorata) group of three on nest, Punta Suarez, Espanola Island, Galapagos
Staffan Widstrand / Wild Wonders of China / Pallas's cat (Otocolobus manul) two sitting side by side, Tibetan Plateau, Qinghai, China
Ross Hoddinott / Harvest mice (Micromys minutus) on grass stems, Devon, UK. July 2016. Captive.
Danny Green / Three Sea otters (Enhydra lutris) resting on ice, Alaska, June
Edwin Giesbers / RF - European ground squirrels / Sousliks (Spermophilus citellus)greeting, Gerasdorf, Austria. April. (This image may be licensed either as rights managed or royalty free.)
Danny Green / Coastal brown bears (Ursus arctos) resting, Lake Clarke National Park, Alaska, September
Chris & Monique Fallows / Dusky dolphins (Lagenorhynchus obscurus) porpoising, Puerto Madryn, Peninsula Valdez, Argentina, December.
Alex Hyde / RF - Scarlet macaw (Ara macao) pair preening, Osa Peninsula, Costa Rica. (This image may be licensed either as rights managed or royalty free.)
Tony Wu / Swimmer stroking 'Scar', a male Sperm whale (Physeter macrocephalus) who often seems to seek out and enjoy contact with people. Caribbean, January 2010. Model released.
Mark Taylor / Black and white Border collie looking sideways at black and white kitten. NOT AVAILABLE FOR BOOK USE
Jane Burton / British Shorthair kittens, Benedict, ginger, and Joan, silver tabby.
Anup Shah / Southern plains grey langur / Hanuman langur (Semnopithecus dussumieri) female grooming a domestic dog. Jodhpur, Rajasthan, India. March.
Anup Shah / Southern plains grey langur / Hanuman langur (Semnopithecus dussumieri) females hugging to reinforce rank. Jodhpur, Rajasthan, India. March.