Racing in the XOD class during day six of the Aberdeen Asset Management Cowes Week on August 11, 2011 in Cowes, England. (Photo by Alan Crowhurst/Getty Images)

Singer Selena Gomez performs at the PNC Bank Arts Center on August 20, 2011 in Holmdel, New Jersey. (Photo by Michael Loccisano/Getty Images)

A mongoose growls at a startled lion on September 10, 2011 in Maasai Mara, Kenya. Four lions were left with their tails between their legs when a mongoose bravely took on the predators. Despite being under two feet tall, the aggressive mongoose growled at the felines and even bit one on the nose. The shocking fight, which was photographed in 2011 but has just been released, began in the Masaai Mara National Park, Kenya, when photographer Jerome Guillaumot came across four young lions surrounding the terrified marsh mongoose. The lions chased the mongoose into a hole in the ground but the small animal reemerged to fight the predators once again before running for cover. (Photo by Jerome Guillaumot/Barcroft Media)

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)

Cannabis cigarettes at the growing facility of the Tikun Olam company on March 7, 2011 near the northern city of Safed, Israel. In conjunction with Israel's Health Ministry, Tikon Olam are currently distributing cannabis for medicinal purposes to over 1800 people in Israel.