Fiona Rogers / Eastern chimpanzee (Pan troglodytes schweinfurtheii) juvenile female 'Fadhila' aged 5 years and her brother 'Fifty' aged 3 years playing together.Gombe National Park, Tanzania.

Fiona Rogers / Eastern Chimpanzee (Pan troglodytes schweinfurthii) five year old juvenile female, named Fadhila, playing with her three year old brother, named Fifty, Gombe National Park, Tanzania

Jordi Chias / Red Sea anemonefish (Amphiprion bicinctus) in their home, a Sea anemone (Heteractis magnifica), on a coral reef. Big Brother island, Red Sea. Egypt.

Alex Mustard / Oceanic whitetip shark (Carcharhinus longimanus) accompanied by pilotfish (Naucrates ductor) as it cruises beneath the surface of the Red Sea, close to Little Brother Island. The Brothers Islands, Egy...

Tom Gilks / Tanzanian boys doing homework using oil lamp, Tanzania.

Laurent Geslin / Fulani teenage girl looking after her young brother, sunrise, North Senegal, West Africa, 2005

David Tipling / Young brother and sister bird watching in woodland in summer, Norfolk. July 2012. Model Released Model released.

Dan Burton / Children in garden photographing flowers and insects. France, Europe, August. Model released.

Niall Benvie / Boy and girl dragging a Christmas tree home from the forest, Angus, Scotland, UK, January 2010, model released

Klaus Echle / Little Owl (Athene noctua) young bird peering through boughs. Black Forest, Germany, June.

David Tipling / Young boy and girl playing in Bluebell (Hyacinthoides non-scripta) wood, Norfolk, UK, May. Model released.

David Tipling / Young boy and girl playing in Bluebell (Hyacinthoides non-scripta) wood, Norfolk, UK, May. Model released