Enrique Lopez-Tapia,Enrique Lopez-Tapia / Gentoo penguin (Pygoscelis papua) and Antarctic cruise liner 'MV Ushuaia' in Neko Harbour, Andvord Bay. Antarctic Peninsula, Antarctica

Brent Stephenson / A cruise ship heads back up the Beagle Channel towards Ushuaia at the end of an Antarctic cruise. Beagle Channel, Tierra del Fuego Archipelago, South America, December.

Ashley Cooper / Sunrise over Antarctic expedition ships in the harbour of Ushuaia, Tierra del Fuego, Argentina. February 2014.

Ashley Cooper / Sunrise over the harbour of Ushuaia, Tierra del Fuego, Argentina. February 2014.

Ashley Cooper / Argentinian Naval vessels in the town of Ushuaia, Tierra del Fuego, Argentina. February 2014.

Ashley Cooper / Antarctic cruise boats moored in the town of Ushuaia, Tierra del Fuego, Argentina. February 2014.

Michel Roggo / Ross Ice Shelf, the largest ice shelf of Antarctica, near Cape Crozier, Ross Island, Ross Sea, Antarctica Aerial shot from helicopter 02.02.2017 Trip on the MV Ortelius, 13 Jan ? 14 Feb, 2017 From Ush...

Merryn Thomas / Ushuaia, capital of Tierra del Fuego, the Southernmost city in the world. Antartida e Islas del Atlantico Sur Province, Argentina. January 2014.

Merryn Thomas / Yachts moored in Ushuaia, capital of Tierra del Fuego, Antartida e Islas del Atlantico Sur Province, Argentina. January 2014.

Merryn Thomas / Ushuaia, capital of Tierra del Fuego, Southernmost city in the world. Antartida e Islas del Atlantico Sur Province, Argentina. January 2014.

Brent Stephenson / Dolphin gull (Larus scoresbii) standing on a rock yawning, on the shoreline, Ushuaia, Tierra del Fuego, South America, December.

Brent Stephenson / Male Kelp goose (Chloephaga hybrida) standing on a rock just offshore, Ushuaia, Tierra del Fuego, South America, December.

Jabruson / Mozambican children with captive Yellow Baboon (Papio cynocephalus) youngster, caught during troop crop raiding. Pemba to Montepuez highway, north-eastern Mozambique. No release available.

Jabruson / Mozambican children with captive Yellow Baboon youngster (Papio cynocephalus). Young animal caught during troop crop raiding. Pemba to Montepuez highway, north-eastern Mozambique, November 2011. Wildl...

Anup Shah / Troop of Proboscis Monkeys (Nasalis larvatus) walking on their hindlegs through the mudflats revealed at low tide. Bako National Park, Sarawak, Borneo, Malaysia, March 2010.

Jean-Pierre Zwaenepoel / Hindu man feeding troop of Southern plains grey / Hanuman langur {Semnopithecus dussumieri} nr Jodhpur, Rajasthan, India.

Mitsuaki Iwago / Eastern Grey Kangaroo (Macropus giganteus) group, Australia

Anup Shah / Troop of Southern plains grey / Hanuman langur {Semnopithecus dussumieri} feeding, Ranthambhore NP, Rajasthan, India

Oscar Dewhurst / Dusky Titi monkey (Callicebus moloch) family troop sitting on a fallen tree in the Peruvian Amazon, with one grooming another. Madre de Dios, Peru. March

Oscar Dewhurst / Dusky Titi monkey (Callicebus moloch) family troop sitting on a fallen tree in the Peruvian Amazon, with one grooming another. Madre de Dios, Peru. March

Bernard Castelein / Rhesus macaque (Macaca mulatta), large group on the move, Keoladeo NP, Bharatpur, India

Pedro Narra / Mountain Gorilla (Goriila beringei) family group resting, Volcanoes National Park, Virunga Mountains, Rwanda.

Alex Hyde / Common Squirrel Monkey (Saimiri sciureus) troop moving through rainforest canopy at dawn. Manu Biosphere Reserve, Peru. November.

Cyril Ruoso / Chimpanzee (Pan troglodytes verus) troop feeding in field of rice, with scarecrow. The scarecrow doesn't work for more than a day or two. Bossou, Republic of Guinea