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1 .This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?
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2 .In the 1960s submarine teams in the Southern Ocean first heard.
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3 .The sound reminded the submariners of a duck.
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4 .So they dubbed the mysterious sound the bio-duck.
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5 .Since then, scientists have frequently recorded the bio-duck sound in Antarctic waters.
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6 .But its source remained unknown. Until now.
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7 .In 2013 researchers attached sensors to two Antarctic minke whales.
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8 .The tags could track depth and location and also record vocalizations.
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9 .Over a combined total of 26 hours, 32 calls were captured—including some low-pitched pulses.
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10 .Some of which matched recordings made nearby of the bio-duck sound.
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11 .The minke whale is thus revealed to be the source of the decades-old unidentified bio-duckitude.
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12 .The work is in the journal Biology Letters.
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13 .Because minke whales swim in icy Antarctic waters, they're difficult to monitor, especially in winter.
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14 .But by analyzing the collection of bio-duck sounds recorded over the decades, researchers may now be able to track their population size and migration patterns.
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15 .But perhaps the bigger lesson: if it quacks like a duck... maybe it's a whale.
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16 .Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.
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