Anup Shah / Western chimpanzees female 'Jire' aged 52 and her daughter 'Joya' aged 6 years and son 'Jeje' aged 13 years feeding on palm oil fruits stored by villagers, Bossou Forest, Mont Nimba, Guinea. December...

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Fanle' aged 13 years and protecting her infant son 'Flanle' aged 3 years from an aggressive male, Bossou Forest, Mont Nimba, Guinea. January 2011.

Paul D Stewart / 1881 portrait of Charles Robert Darwin (12 February 1809 - 19 April 1882) English Naturalist and author of the Origin of Species. 1922 Hand coloured portrait aquatint of Darwin by G. Sidney Hunt after...

Paul D Stewart / Skull of Moa or Dinornis discovered by Mr. Walter Mantell on the North Island of New Zealand. Plate with later tinting, from Gideom Mantell's petrifactions and their teachings (1851) published by Henr...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years feeding on rotten wood from a tree while his juvenile son 'Tembo' aged 4 years waits his turn, Bai Ho...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years feeding on rotten wood from a tree while female 'Malui' and their juvenile son 'Tembo' aged 4 years s...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years feeding on rotten wood from a tree while female 'Malui' and their juvenile son 'Tembo' aged 4 years s...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years feeding on rotten wood from a tree while his juvenile son 'Tembo' aged 4 years waits his turn, Bai Ho...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years feeding on fruit with his son 'Tembo' aged 4 years sitting in the background, Bai Hokou, Dzanga Sangh...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years standing in a bai watched by son 'Tembo' aged 4 years, Bai Hokou, Dzanga Sangha Special Dense Forest...

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Lady Di' with her son 'La Betty' aged 3 years portrait. Camp Rasak, Lamandau Nature Reserve, Central Kalimantan, Borneo, Indonesia. July 2010. Rehabi...

Francis Abbott / Son bou beach, Minorca, Balearic Is, Spain

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) female cradling her baby son aged less than 1 month, Tangkoko National Park, Sulawesi, Indonesia.

Mark Taylor / Elderly white rabbit, Foggy, 8 years old, and his young son, 9 weeks old.

Anup Shah / Western chimpanzees female 'Jire' aged 52 and her daughter 'Joya' aged 6 years and son 'Jeje' aged 13 years feeding on palm oil fruits stored by villagers, Bossou Forest, Mont Nimba, Guinea. December...

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Fanle' aged 13 years with her suckling son 'Flanle' aged 3 years sitting with female 'Jire' aged 52 years, Bossou Forest, Mont Nimba, Guinea. Janua...

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Fanle' aged 13 years carrying her son 'Flanle' aged 3 years and female 'Jire' aged 52 years alert to a possible danger, Bossou Forest, Mont Nimba,...

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Fanle' aged 13 years carrying her son 'Flanle' aged 3 years and female 'Jire' aged 52 years alert to a possible danger, Bossou Forest, Mont Nimba,...

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Fanle' aged 13 years carrying her infant son 'Flanle' aged 3 years on her back, Bossou Forest, Mont Nimba, Guinea. January 2011.

Anup Shah / Western chimpanzee (Pan troglodytes verus) young male 'Peley' aged 12 years, female 'Fanle' aged 13 years and her infant son 'Flanle' aged 3 years using rocks as tools to crack open palm oil nuts, B...

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Fanle' aged 13 years in estrus but still carrying her infant son 'Flanle' aged 3 years on her back watching male 'Tua' cracking palm oil nuts, Boss...

Anup Shah / Western chimpanzee (Pan troglodytes verus) young male 'Peley' aged 12 years and his mother 'Pama' aged 43 years on alert, listening after hearing unidentified sound, Bossou Forest, Mont Nimba, Guine...

Anup Shah / Western chimpanzee (Pan troglodytes verus) young male 'Peley' aged 12 years grooming his mother 'Pama' aged 43 years, Bossou Forest, Mont Nimba, Guinea. December 2010.

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Pama' aged 43 years feeding on palm oil fruits while her son 'Peley' aged 12 years rests behind on a fallen tree, Bossou Forest, Mont Nimba, Guinea...

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Fanle' aged 13 years with her infant son 'Flanle' aged 3 years on her back sitting with alpha male 'Foaf' aged 30 years who is cracking open palm o...

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Fanle' aged 13 years carrying her infant son 'Flanle' aged 3 years on her back, Bossou Forest, Mont Nimba, Guinea. January 2011.

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Fanle' aged 13 years grinning due to stress as her infant son 'Flanle' aged 3 years struggles to suckle, Bossou Forest, Mont Nimba, Guinea. January...

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Fanle' aged 13 years carrying her infant son 'Flanle' aged 3 years on her back, wary at a male showing her unwanted attention, Bossou Forest, Mont...

Anup Shah / Western chimpanzee (Pan troglodytes verus) young male 'Peley' aged 12 years and his mother 'Pama' aged 43 years alert having heard an unidentified sound, Bossou Forest, Mont Nimba, Guinea. December...

Fiona Rogers / Western chimpazee (Pan troglodytes verus) young male 'Peley' aged 12 years and his mother 'Pama' aged 43 years on alert listening to unidentified sound, Bossou Forest, Mont Nimba, Guinea. December 20...

Fiona Rogers / Western chimpazee (Pan troglodytes verus) female 'Fanle' aged 13 years and her infant son 'Flanle' aged 3 years sitting together, Bossou Forest, Mont Nimba, Guinea. January 2011.

Fiona Rogers / Western chimpazee (Pan troglodytes verus) female 'Fanle' aged 13 years and her infant son 'Flanle' aged 3 years holding on to a tree trunk, Bossou Forest, Mont Nimba, Guinea. January 2011.

Fiona Rogers / Western chimpazee (Pan troglodytes verus) infant male 'Flanle' aged 3 years standing in front of his mother, Bossou Forest, Mont Nimba, Guinea. January 2011.

Enrique Lopez-Tapia / Young mother and son in the Budhi Gandaki river valley. Manaslu Conservation Area, Himalayas, Nepal, October 2009.

Enrique Lopez-Tapia / Mother with her son, Manaslu Conservation Area, Himalayas, Nepal, October 2009.

David Woodfall / Bangladeshi woman and son in community allotment on former football pitch - Vetch field, Swansea West Glamorgan, Wales, UK, June 2006. Editorial use only

David Woodfall / Bangladeshi woman and son in community allotment on former football pitch - Vetch field - in Swansea West Glamorgan, Wales, UK, June 2006. Editorial use only

Andy Rouse / African lion (Panthera leo) the famous Notch and son, Masai Mara National Reserve, Kenya

Eric Baccega / Inuit man showing his son the breathing hole of a Bearded seal (Erignathus barbatus) on the ice floe, Ellesmere Island, Nanavut, Canada, June 2012. Model released.

Eric Baccega / Inuit man showing his son fur from a moulting young Bearded seal (Erignathus barbatus), Ellesmere Island, Nanavut, Canada, June 2012.

Benoit Stichelbaut / Father teaching son how to scull at the Douarnenez Maritime Festival, France, July 2008

Benoit Stichelbaut / Father teaching son how to scull at the Douarnenez Maritime Festival, France, July 2008

Billy Black / Father teaching his son how to tie a knot aboard a Hunter 49 yacht off St. Augustine, Florida, USA. Model and Property released, 2006.

Billy Black / Father and son pulling a tender through the shallows, St. Augustine, Florida, USA. Model Released.

Billy Black / Father teaching his son how to tie a knot aboard a Hunter 49 yacht off St. Augustine, Florida, USA. Model and Property released, 2006.

Rob Cousins / Father and son sailing a dinghy in Bristol Harbour, August 2008

Nick Turner / Mother and son on The Tarka Trail cycle path, Devon, UK, March 2010.

Paul Harris / 2020VISION / Father and son identifying birds on family visit to the Westhay Nature Reserve, Somerset Levels, UK, June 2011, model released

Paul Harris / 2020VISION / Father and son pond dipping in rhyne and identifying the catch, Westhay Nature Reserve, Somerset Levels, UK, June 2011, model released

Paul Harris / 2020VISION / Father and son bird watching from hide, visiting the Westhay Nature Reserve, Somerset Levels, UK, June 2011, model released

Peter Cairns / 2020VISION / Father helping son to look down telescope at seabirds at Scottish Seabird Centre, North Berwick, Firth of Forth, Lothian, Scotland, UK, August 2011

Peter Cairns / 2020VISION / Father and son looking down telescope at seabirds at Scottish Seabird Centre, North Berwick, Firth of Forth, Lothian, Scotland, UK, August 2011

Peter Cairns / 2020VISION / Father helping son to look down telescope to view seabirds at Scottish Seabird Centre, North Berwick, Firth of Forth, Lothian, Scotland, UK, August 2011

Sue Flood - TD / Doug Allan with his son, Liam, receiving the second bar of The Polar Medal, Buckingham Palace, London, UK, 26th January 2012. Doug received his first Polar Medal in 1983 for his work with the British...

Bryan and Cherry Alexander / Kristina Neyva, a Khanty woman, with her son Kleb at a reindeer herders' camp in the Polar Ural Mountains. Yamal, Western Siberia, Russia.

Andrew Parkinson / Puffin (Fratercula arctica) comes into land with some sandeels, as a mother and her son watch nearby. Farne Islands, Northumberland, UK, May.

Klaus Echle / Mother and son, reading story book about foxes. Black Forest, Germany.

Klaus Echle / Mother and son, reading story book about badger badger family. Black Forest, Germany. Model released

Anup Shah / Bonobo (Pan paniscus) female 'Opala' carrying her juvenile son 'Pole' aged 4 years on her back, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fiona Rogers / Bonobo (Pan paniscus) female 'Opala' carrying her juvenile son 'Pole' across water, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Bryan and Cherry Alexander / Selkup man and his son travelling by boat on the Puryakhar River near Bistrinka. Purovsky Region, Yamal, Western Siberia, Russia, August 2008.

Bryan and Cherry Alexander / Selkup man and his son travelling by boat on the Puryakhar River near Bistrinka. Purovsky Region, Yamal, Western Siberia, Russia, August 2008. Editorial use only.

Bryan and Cherry Alexander / Saami Reindeer herder and his son keeping watch over reindeer at their winter pastures on the tundra near Kautokeino. Finnmark, North Norway, March 2007.

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Tutut' with her baby son 'Thor' aged 8-9 months feeding on leaves - wide angle perspective. Camp Leakey, Tanjung Puting National Park, Central Kalima...

Florian Möllers / Subadult Chimpanzee (Pan troglodytes schweinfurthii) "Musa" (15 years) grooming his mother "Nambi". Budongo Forest Reserve, Masindi, Uganda, Africa. December

Florian Möllers / Female Chimpanzee (Pan troglodytes schweinfurthii) "Nambi" (44+ years) grooming her son "Musa" (15 years), daughter "Night" (3 years) sitting close-by. Budongo Forest Reserve, Masindi, Uganda, Africa....

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Tutut' feeding her baby son 'Thor' aged 8-9 months regurgitated leaves - wide angle perspective. Camp Leakey, Tanjung Puting National Park, Central K...

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Tutut' with her baby son 'Thor' aged 8-9 months feeding on leaves - wide angle perspective. Camp Leakey, Tanjung Puting National Park, Central Kalima...

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Tutut' with her baby son 'Thor' aged 8-9 months feeding on leaves - wide angle perspective. Camp Leakey, Tanjung Puting National Park, Central Kalima...

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Tutut' with her son 'Thor' aged 8-9 months sheltering from the rain. Camp Leakey, Tanjung Puting National Park, Central Kalimantan, Borneo, Indonesia...

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Tutut' sitting with her baby son 'Thor' aged 8-9 months. Camp Leakey, Tanjung Puting National Park, Central Kalimantan, Borneo, Indonesia. July 2010....

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Tutut' and baby son 'Thor' aged 8-9 months resting on the forest floor - wide angle perspective. Camp Leakey, Tanjung Puting National Park, Central...

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Tutut' and baby son 'Thor' aged 8-9 months resting on the forest floor - wide angle perspective. Camp Leakey, Tanjung Puting National Park, Central...

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Tutut' and baby son 'Thor' aged 8-9 months resting on the forest floor - wide angle perspective. Camp Leakey, Tanjung Puting National Park, Central...

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Tutut' and baby son 'Thor' aged 8-9 months resting on the forest floor - wide angle perspective. Camp Leakey, Tanjung Puting National Park, Central...

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Tutut' and baby son 'Thor' aged 8-9 months resting on the forest floor - wide angle perspective. Camp Leakey, Tanjung Puting National Park, Central...

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Tutut' and baby son 'Thor' aged 8-9 months resting on the forest floor - wide angle perspective. Camp Leakey, Tanjung Puting National Park, Central K...

David Woodfall / Father and son looking at Severn estuary intertidal zone,Gloucestershire,England,UK, December 2009. MRDELETE

ASHISH & SHANTHI CHANDOLA / Maldhari woman with child drinking from bowl, Kutch, Gujarat, India, April 2009

Bryan and Cherry Alexander / Sami Woman and son returning to Lovozero by boat after summer fishing trip. Kola Peninsula, Northwest Russia, 2005.

Christophe Courteau / Kalahari bushmen, woman gathering berries and giveing them to her son, rainy season, Central Kalahari Desert, Botswana, March 2009

Bryan and Cherry Alexander / Inuit father and son skinning Reindeer (Rangifer tarandus). Baffin Island, Nunavut, Canada, 1999.

Tim Laman / Orangutan researcher Cheryl Knott shows her young son (both model released) a data sheet where she records behavioral data on wild Orangutans. Borneo, July 2007

Tim Laman / Orangutan researcher Cheryl Knott and young son (both model released) approach the research camp main building at the research station in Gunung Palung NP. Borneo, July 2007

David Woodfall / Hindu woman washing son at well, village life, Madhya Pradesh, India, November 2008

David Woodfall / Father, baby and son washing in village pond during the monsoon rain, Ganges delta, Bangladesh, November 2008

David Woodfall / Hindu woman washing son at well, village life, Madyha Pradesh, India, Asia, November 2008

Piper Mackay / A young Embra Indian father holds his son while playing the flute, Soberania NP, rainforest, Panama, November 2008

Philippe Clement / Statue of William Tell and his son, Altdorf, Switzerland, July 2009

Philippe Clement / Statue of William Tell and his son, Altdorf, Switzerland, July 2009

David Tipling / Mother and son bird watching on bird reserve at Cley, Norfolk, UK, January 2008, model released

Kristel Richard / Two Indian men riding black Marwari stallions (father and son) in Rohet, Rajasthan, India, 2009

Jeff Rotman / Father and son dragger hold giant 45 pound Codfish (Gadus morhua) aboard dragger / trawler. Gloucester, Massachusetts, USA, North Atlantic Ocean. 2007 Model released.

Tim Laman / Tim Laman and Russell study their map while on the Hell's Bay Canoe Trail, Everglades National Park. Florida, USA. Model released, April 2008

Juergen Freund / Fisherman and son on traditional sailboat out for night fishing using a kerosine "Petromax" lamp to attract fish, Camarines Sur, Luzon, Philippines 2008.

Jurgen Freund / Fisherman and son on traditional sailboat out for night fishing using a kerosine "Petromax" lamp to attract fish, Camarines Sur, Luzon, Philippines 2008.