| 11. | Baleen whales have two flippers on the front, near the head.
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| 12. | Unlike in toothed whales, baleen whales have sweat glands.
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| 13. | Some baleen whales will deliberately rub themselves on substrate to dislodge parasites.
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| 14. | Baleen plates are broader at the gumline ( base ).
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| 15. | The humpback has the most diverse hunting repertoire of all baleen whales.
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| 16. | The dwarf form has the most complex coloration of any baleen whale.
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| 17. | The sei whale looks similar to other large baleen whales.
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| 18. | Most baleen whales make sounds at about 15 20 hertz.
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| 19. | Baleen whales were generally the main source of whale oil.
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| 20. | There are 85 species of whales in two groups _ toothed and baleen.
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