FLUKES Often white underneath, Smooth, all black on rear concaved and scalloped on margin. [Please select]
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The flukes are broad, concaved on the rear margin, and deeply notched. [Please select]
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The flukes of humpback whales show varying amounts of white beneath, are pointed on the tips, and are distinctly concaved and irregularly rippled on the rear margin. [Please select]
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Note that the rear margin of the flukes of this species, unlike that of the humpback whale, is smooth, broad, and concaved distinctly towards a deep fluke notch. [Please select]
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