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Blue whales can survive on 2 heartbeats a minute

Tuesday, November 26, 2019 - 01:24

Scientists say it took a lot of ingenuity and a little luck to record the first ever heart rate from a blue whale. They found they survive on as little as two beats per minute when they dive down for food. Michelle Hennessy reports.

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Scientists say it took a lot of ingenuity and a little luck to record the first ever heart rate from a blue whale. They found they survive on as little as two beats per minute when they dive down for food. Michelle Hennessy reports.

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Blue whales can survive on 2 heartbeats a minute

Tuesday, November 26, 2019 - 01:24