Spring is here. A bird peeps out from a Palash tree. The photo has been taken in Khagrachari city. Photo: Nirab ChowdhuryGigi Gorgeous presents a creation during the American Heart Association`s (AHA) Go Red For Women Red Dress Collection, presented by Macy`s at New York Fashion Week February 11, 2016. Photo: ReutersDemocratic U.S. presidential candidate Senator Bernie Sanders and former Secretary of State Hillary Clinton discuss an issue at the PBS NewsHour Democratic presidential candidates debate in Milwaukee, Wisconsin, February 11, 2016. Photo: ReutersKendall Jenner arrives holding North West, for Kanye West`s Yeezy Season 3 Collection presentation and listening party for the `The Life of Pablo` album during New York Fashion Week February 11, 2016. Photo: ReutersAlexa PenaVega presents a creation during the AHA`s Go Red For Women Red Dress Collection presented by Macy`s at New York Fashion Week February 11, 2016. Photo: ReutersU.S. Republican presidential candidate Jeb Bush speaks during a campaign event in Columbia, South Carolina February 11, 2016. Photo: ReutersU.S. President Barack Obama appears on a taping of the Ellen DeGeneres Show in Burbank, California February 11, 2016. Photo: ReutersJackeline, 26, holds her son who is 4-months old and born with microcephaly, in front of their house in Olinda, near Recife, Brazil, February 11, 2016. Photo: Reuters19-month-old Curtis Ray Jeffery II, of Louisiana, wears a pacifier with U.S. presidential candidate Donald Trump`s image on it before a rally in Baton Rouge, Louisiana February 11, 2016. Photo: ReutersThe collision of two black holes holes - a tremendously powerful event detected for the first time ever by the Laser Interferometer Gravitational-Wave Observatory, or LIGO - is seen in this still image from a computer simulation released in Washington February 11, 2016. Photo: ReutersWater drops glisten on tree branches during sunrise in Slavonski Brod, Croatia, February 11, 2016. Photo: ReutersCast member George Clooney and his wife Amal arrive on the red carpet for the screening of the movie `Hail, Caesar!`, during the opening gala of the 66th Berlinale International Film Festival, in Berlin, Germany February 11, 2016. Photo: ReutersRiders practice during the launch of Israel`s first official motocross course in Wingate Institute, Israel’s National Centre for Physical Education and Sport, near Netanya, Israel February 11, 2016. Photo: ReutersTwo four-month-old North American cougars play in the Royev Ruchey zoo on the suburbs of the Siberian city of Krasnoyarsk, Russia, February 11, 2016. Photo: Reuters