| 1. | Sperm whales are extremely difficult to euthanize, even with a high-powered rifle,
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| 2. | Others include minke whale, sperm whale and some giant beaked whales ).
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| 3. | When sperm whales socialize, they emit complex patterns of clicks called codas.
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| 4. | In some small sperm whales, the malleus is fused with the ectotympanic.
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| 5. | The light was projected from lamp wicks fueled by sperm whale oil.
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| 6. | The right, humpback and sperm whales are the most widely observed jumpers.
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| 7. | Rarely, large killer whale pods can overwhelm even adult female sperm whales.
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| 8. | Perhaps 10 percent of the sperm whales'original population of 2 million survive.
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| 9. | The sperm whale has a single nostril on its upper left head.
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| 10. | Sperm whales were made famous by Herman Melville in " Moby-Dick ."
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