A freediver explores an underwater limestone cave with a torch. Ryokan

A freediver explores an underwater limestone cave with a torch. RyokanA freediver explores an underwater limestone cave with a torch. Makatea Atoll, Tuamotu Archipelago, French Polynesia

fluffy clouds cast shadows as they float over the endless short grass savannah plain

A desert track passes through open woodland and spinifex grasslands

A peacock displays to a group of peahens

A Nile Crocodile stalks a dead Hippopotamus on a wetland at sunset

A young boy rides his balance bike through a tunnel under a freeway

A San Bushmen carrying his bow and arrow quiver

A boy wears his snorkel and mask in the shallows of a tropical island

The trunks and canopy of River Red Gums lining a forest stream

A blind and orphaned Black Rhinoceros feeding on hay in a wildlife rescue centre

Conservation volunteers travel up the Amazon River in a water taxi to assist with research

A bright red crane on a passenger ferry used for lifting cargo

An aerial view of the tortured and fractured surface of a glacier flowing into the ocean