Now may be your chance to see a blue whale, the largest animal ever to have lived on earth, can be as long as three city buses, weigh more than 20 elephants and shoot up a spout of water as high as a three-story building with its exhalation.
PHOTO CAPTION: A blue whale surfaces in front of spectators on a 2011 excursion. More whales than usual have been seen off Northern California this season.
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