A research scientist removes a fish tag from an Adelie penguin chick weighed and measured several times throughout the summer. Peking duck A family dog stands guard

A family dog stands guard over gifts beneath a Christmas tree

A mother African Elephant follows her young calf across a floodplain

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

Sunset falls over a raging sea and waves on a rugged coastline

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

A research scientist removes a fish tag from an Adelie penguin chick weighed and measured several times throughout the summer. Peking duck A family dog stands guardA 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.