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

Philippe Clement / Lightning during thunderstorm above petrochemical industry seen through magnifying glass held against illuminated globe of the earth Digital composite

Tim Fitzharris / Looking up at blue sky through a canopy of fall colored Aspen trees, Colorado

Espen Bergersen / Tourist photographing killer whales / orcas (Orcinus orca) on 'Whale Safari'. Andfjorden, close to Andoya, Nordland, Northern Norway. January 2014.

Matthias Breiter / Polar Bear (Ursus maritimus) cub watching cook through window, Churchill, Manitoba, Canada