Gary Bell/ Oceanwide / Intermediate Cardinalfish (Cheilodipterus intermedius) male incubating eggs in mouth, Great Barrier Reef, Australia

Gary Bell/ Oceanwide / Intermediate Cardinalfish (Cheilodipterus intermedius) male incubating eggs in mouth, Great Barrier Reef, Australia

Juergen & Christine Sohns / Swamp Wallaby (Wallabia bicolor) mother and joey, Mount Lofty, South Australia, Australia

Yva Momatiuk & John Eastcott / Atlantic Puffin (Fratercula arctica) with fish prey, Borgarfjordur Eystri, Iceland

Michael Quinton / Steller's Sea Lion (Eumetopias jubatus) with Pink Salmon (Oncorhynchus gorbuscha) prey, Alaska

Matthias Breiter / Grizzly Bear (Ursus arctos horribilis) with Pink Salmon (Oncorhynchus gorbuscha) prey, Anan Creek, Tongass National Forest, Alaska

Pete Oxford / Tea picker, collecting Tea leaves (Camelia sinensis) wearing large straw hat, Assam, North East India, October 2014.

Pete Oxford / Woman with basket on her head picking tea (Camellia sinensis), Assam, North East India, October 2014.

Fiona Rogers / Japanese Macaque (Macaca fuscata) female cuddling her baby, Jigokudani Monkey Park, Japan

Roland Seitre / Eastern Grey Kangaroo (Macropus giganteus) joey in mother's pouch, New South Wales, Australia

Laurent Geslin / Man carrying sack of tea on his head at Bharatpur railway station, Rajasthan, India 2006

Christophe Courteau,Christophe Courteau / Villagers walking along a road during a heavy rain shower, Virunga National Park, North Kivu Province, Democratic Republic of the Congo, August 2010.