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Blue whales, largest animals ever to have lived on Earth, have almost been killed to extinction during the cruel whaling perio… | Blue whale, Whale, Ocean creatures
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Photographer captures breathtaking images as he swims with blue whale | Largest animal ever, Underwater animals, Whale
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A Blue Whale Had His Heartbeat Taken for the First Time Ever — And Scientists Are Shocked | Live Science
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The Mismeasure by Man - How We Overstate the Length of the Blue Whale, Earth's Largest Creature - California Science Weekly
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