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The Week in Pictures: February 12 - 19

Fireworks bring in the Year of the Sheep, an unexpected samba dancer enjoys Carnival, Niagara Falls dazzles in subzero temperature and more.
BEIJING, CHINA - February 19: A Chinese security guard checks his smartphone as fireworks explode during celebrations of the Lunar New Year early on February 19, 2015 in Beijing, China.The Chinese Lunar New Year of Sheep also known as the Spring Festival, which is based on the Lunisolar Chinese calendar, is celebrated from the first day of the first month of the lunar year and ends with Lantern Festival on the Fifteenth day. (Photo by Kevin Frayer/Getty Images)
BEIJING, CHINA - February 19: A Chinese security guard checks his smartphone as fireworks explode during celebrations of the Lunar New Year early on February 19, 2015 in Beijing, China.The Chinese Lunar New Year of Sheep also known as the Spring Festival, which is based on the Lunisolar Chinese calendar, is celebrated from the first day of the first month of the lunar year and ends with Lantern Festival on the Fifteenth day. (Photo by Kevin Frayer/Getty Images)Kevin Frayer / Getty Images