A research scientist removes a fish tag from an Adelie penguin chick weighed and measured several times throughout the summer. Peking duck A waterfall cascades down a

A waterfall cascades down a sheer glacial cliff of the Cradle Plateau

The propellor cone of a de-commissioned wind turbine in the desert

Giant prickly pear cacti silhouetted under storm clouds

A herd of African Elephants and calf crossing a wide plain on the shore of a soda lake

here formed over a wetland lagoon at dawn

A research scientist removes a fish tag from an Adelie penguin chick weighed and measured several times throughout the summer. Peking duck A waterfall cascades down aA research scientist removes a fish tag from an Adelie penguin chick weighed and measured several times throughout the summer. Caughley Beach, Cape Bird, Ross Island, Antarctica.