In this photo taken on Monday, January 5, 2015, a mallard duck attempts to walk on a frozen pond in Yukon, Okla. (Photo by Steve Gooch/AP Photo/The Oklahoman)

Soniya, 6, whose family moved to Islamabad from Pakistan's Khyber-Pakhtunkhwa province to look for work, stands outside their house on the outskirts of Islamabad January 1, 2015. (Photo by Zohra Bensemra/Reuters)

A model presents makeup creations during dress reharsal by Maybelline New York at the Berlin Fashion Week Autumn/Winter 2015 in Berlin January 19, 2015. (Photo by Fabrizio Bensch/Reuters)

A model presents a creation by German designer Karl Lagerfeld as part of his Haute Couture Spring Summer 2015 fashion show for French fashion house Chanel in Paris January 27, 2015. (Photo by Gonzalo Fuentes/Reuters)

Members of Krewe Delusion, one of the the first parades of the Mardi Gras festivities, through the French Quarter of New Orleans January 31, 2015. (Photo by Lee Celano/Reuters)

Jiff with Playboy Playmates arrives at the Playboy Super Bowl XLIX Party on Friday, January 30, 2015 in Scottsdale, Ariz. (Photo by Omar Vega/Invision/AP Photo)

Shoppers walk past crocodiles for sale at a market in Bata on February 3, 2015. Markets in Equatorial Guinea sell a variety of animals including pangolins, monkeys and crocodiles as food. (Photo by Carl De Souza/AFP Photo)

People carry bags containing their belongings past a burning residential block, caused by a recent shelling according to locals, on the outskirts of Donetsk, eastern Ukraine February 9, 2015. (Photo by Maxim Shemetov/Reuters)