Pat Tuson / Boat loading or unloading scrap metal, River Thames, London, England UK, February 2007

Eric Baccega / Western lowland gorilla (Gorilla gorilla gorilla) reintroduction to Bateke Plateau National Park through Gorilla Protection Project. Loading crate with female from Beauval Zoo onto aircraft. Librevill...

Eric Baccega / Western lowland gorilla (Gorilla gorilla gorilla) reintroduction to Bateke Plateau National Park, Gabon through Gorilla Protection Project. Beauval Zoo team and captain standing in front of aeroplane...

Eric Baccega / Western lowland gorilla (Gorilla gorilla gorilla) reintroduction to Bateke Plateau National Park, Gabon through Gorilla Protection Project. Man loading cage with female Gorilla onto van, evening prior...

Ashley Cooper / Women carrying heavy loads of fire wood, Annapurna, Himalayas, Nepal, December 2012.

Enrique Lopez-Tapia / Salt caravan of dromedary camels (Camelus dromedarius), crossing Lake Assale, one of the largest salt lakes in Africa. Afar Region, Ethiopia, Africa. November 2014.

Bruno D'Amicis / People walking on cliffs near Tisisat Falls / Blue Nile Falls carrying heavy loads, south of Bahir Dar, Lake Tana Biosphere Reserve, Ethiopia. December 2013.

Eric Baccega / Injured hump of a caravan Dromedary camel (Camelus dromedarius) due to heavy loads of salt, Lake Assale, Danakil depression, Afar region, Ethiopia, March 2015.

Eric Baccega / Injured hump of a caravan Dromedary camel (Camelus dromedarius) due to heavy loads of salt, Lake Assale, Danakil depression, Afar region, Ethiopia, March 2015.

Steve O. Taylor (GHF) / Lozi women carrying loads on heads, with cattle kraal (enclosure) in the foreground, Sioma Nqwezi Park, Zambia. November 2010.

Steve O. Taylor (GHF) / Park ranger with rifle Garamba National Park, Democratic Republic of the Congo, February 2012.

Enrique Lopez-Tapia / Porters carrying loads across swing bridge in front of waterfall in the Modi Khola river valley. Annapurna Sanctuary, central Nepal, November 2011.