One of ten little spotted kiwi is released on Motuihe Island, a conservation pest-free island close to Auckland, on March 21, 2009 in Auckland, New Zealand. Eventually up to 40 endangered kiwi birds will be relocated to the island. (Photo by Hannah Johnston/Getty Images)

Two chimpanzees share a piece of watermelon at Taronga Zoo on December 23, 2010 in Sydney, Australia. (Photo by Rick Stevens/Taronga Zoo via Getty Images)

Three secondary schoolboys smoking an illicit cigarette in Hyde Park, London. (Photo by Evening Standard/Getty Images). May 1972

Models promote a condom brand at the first Shenzhen s*x Culture Festival on September 21, 2007 in Shenzhen of Guangdong Province, China. The festival aims to increase awareness about reproductive health and popularise s*x education. (Photo by China Photos/Getty Images)

A large bull walrus returns to the shores of Prins Karl Forland after diving and feeding on clams. (Photo by Paul Nicklen/National Geographic). Svalbard, Norway, 2011

The art workshop founded in 2011 by Marvellini Brothers in Milan.“Imagination is more important than knowledge” (by A.E.)

A dog competes during the during the 6th annual Loews Coronado Bay resort surf dog competition in Imperial Beach, near San Diego on June 4, 2011. (Photo by AFP)