Anup Shah / Eastern chimpanzee (Pan troglodytes schweinfurtheii) female 'Sifa' aged 35 years being groomed by juvenile female 'Fadhila' aged 5 years.Gombe National Park, Tanzania. September 2013.
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Fiona Rogers / Eastern chimpanzee (Pan troglodytes schweinfurtheii) female 'Sifa' aged 35 years being groomed by juvenile female 'Fadhila' aged 5 years.Gombe National Park, Tanzania. September 2013.