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...

Andy Rouse / African Lion (Panthera leo) Notch from Disney African Cats film and two of his sons, Masai Mara GR, Kenya, January 2011

Anup Shah / Female Chimpanzee 'Fanni' 20-years-old, resting with sons Fundi, 17-months-old, and Fudge, 5-years-old {Pan troglodytes schweinfurtheii} Gombe NP, Tanzania. 2002

Anup Shah / Female Chimpanzee 'Gremlin' 31-years-old, carrying twin daughters Golden and Glitter, 3-years-3-monhts-old, jockey riding {Pan troglodytes schweinfurtheii} Gombe NP, Tanzania. 2002

Jeff Rotman / Father and sons observe Caribbean reef shark. {Carcharhinus perezi} Bahamas. Model released. Model released.

Anup Shah / Eastern chimpanzee (Pan troglodytes schweinfurtheii) female 'Gremlin' aged 43 years and her sons 'Gimli' aged 10 years and 'Gizmo' aged 4 years . Gombe National Park, Tanzania....

David Woodfall / Father and son walking in Loweswater, Lake District National Park, Cumbria, UK. November. Medium repro only.

Duncan Murrell / Batak village chief carrying his son past a large tree, Sitio Manggapin, Cleopatra's Needle Critical Habitat, Palawan, the Philippines.

Ingo Arndt / Migratory locusts (Locusta migratoria capito) roasted and eaten by a farmer and his sons. Near Isalo National Park, Madagascar. August 2013.

Paul D Stewart / Paradise parrot (Psephotus pulcherrimus) illustration from W. T. Greene Parrots In Captivity, George Bell and Sons, 1884 - 1887. Wood engraving by Benjamin Fawcett after drawings by A.F. Lydon. Extinc...

Paul D Stewart / Illustration of Carolina parrot (Conuropsis carolinensis) from W. T. Greene Parrots In Captivity, George Bell and Sons, 1884 - 1887. Wood engraving by Benjamin Fawcett after drawings by A.F. Lydon. Th...

Anup Shah / Eastern chimpanzee (Pan troglodytes schweinfurtheii) female 'Gremlin' aged 41 years and her daughter 'Gaia' aged 19 years termite fishing while their sons play. Gombe National Park, Tanzania. May 2012...