Anup Shah / Western chimpanzee (Pan troglodytes verus) young male 'Jeje' aged 13 years being groomed by young male 'Peley' aged 12 years, Bossou Forest, Mont Nimba, Guinea. January 2011.
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Anup Shah / Western chimpanzee (Pan troglodytes verus) males 'Jeje' aged 13 years, 'Tua' aged 53 years and 'Peley' aged 12 years grooming, Bossou Forest, Mont Nimba, Guinea. January 2011.
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Chris Gomersall / King penguins (Aptenodytes patagonicus) allo-preening. Fortuna Bay, South Georgia, Antarctica.
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Anup Shah / Western chimpanzee (Pan troglodytes verus) young male 'Jeje' aged 13 years grooming young male 'Peley' aged 12 years, Bossou Forest, Mont Nimba, Guinea. January 2011.
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Anup Shah / Western chimpanzee (Pan troglodytes verus) males 'Jeje' aged 13 years, 'Tua' aged 53 years and 'Peley' aged 12 years grooming, Bossou Forest, Mont Nimba, Guinea. January 2011.
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Anup Shah / Western chimpanzee (Pan troglodytes verus) males 'Jeje' aged 13 years, 'Tua' aged 53 years and 'Peley' aged 12 years grooming, Bossou Forest, Mont Nimba, Guinea. January 2011.
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Fiona Rogers / Western chimpazee (Pan troglodytes verus) males 'Jeje' aged 13 years, 'Tua' aged 53 years and 'Peley' aged 12 years grooming, Bossou Forest, Mont Nimba, Guinea. January 2011.
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Anup Shah / Olive baboon (Papio cynocephalus anubis) group allo-grooming whilst young play, Masai Mara National Reserve, Kenya, September
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Konrad Wothe / Chimpanzees (Pan troglodytes) females grooming with baby, Mahale Mountains National Park, Tanzania, East Africa
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Konrad Wothe / Chimpanzees (Pan troglodytes) females grooming with baby, Mahale Mountains National Park, Tanzania, East Africa
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Konrad Wothe / Chimpanzees (Pan troglodytes) females grooming with baby, Mahale Mountains National Park, Tanzania, East Africa
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Anup Shah / Olive baboons (Papio cynocephalus anubis) group of juveniles grooming, Masai Mara National Reserve, Kenya
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Bernard Castelein / Pair of Painted storks (Mycteria leucocephala), allo-preening, Keoladeo Ghana NP, Bharatpur, Rajasthan, India
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Miles Barton / Chimpanzee group {Pan troglodytes} adults allo grooming, baby playing by itself, Gombe NP, Tanzania, East Africa