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Animals in love on Valentine's DayValentine's Day Celebrated At California Of Sciences

An African Penguin pulls a Valentine's Day card into its nest box at the California Academy of Sciences on February 13, 2013 in San Francisco, California. In honor of Valentine's Day, the colony of African Penguins at the California Academy of Sciences received heart-shaped red valentines with hand written messages from Academy visitors. (Photo by Justin Sullivan/Getty Images)

Animals in love on Valentine's Day

Animals in love on Valentine's Day