Australia's Sally Pearson leads out of the blocks in the women's hurdles semi-final at the International Association of Athletics Federations (IAAF) World Championships in Daegu on September 3, 2011
© MARK RALSTON/AFP/Getty Images) ©
© MARK RALSTON/AFP/Getty Images) ©
Galápagos sea lion off the shore of Fernandina Island, Galápagos Islands, Ecuador
Dr. Sylvia Earle explores the Great Barrier Reef in a scene from 'Mission Blue'
Melbourne Cup Day at Flemington Racecourse on November 1, 2016
Cricket balls sitting together
Blue Lagoon, Comino, Malta
A speedboat tows four “tubers” on Abbey Lake in Surrey, England
MELBOURNE, AUSTRALIA - JANUARY 24: Victoria Azarenka of Belarus plays during day nine of the 2012 Australian Open at Melbourne Park on January 24, 2012 in Melbourne, Australia.
Side View of a Surfer Riding a Wave, Injidup Beach, Western Australia
