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pectoral fin |
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pectoral fin either of a pair of fins, situated just behind the head in fishes, that help to control the direction of movement during locomotion pectoral fin [′pek·tə·rəl ′fin] (vertebrate zoology) One of the pair of fins of fishes corresponding to forelimbs of a quadruped. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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For an audience of typical small fish, the purple-pink and blue of the moon wrasse's pectoral fin blend starting at distances between 1 and 5 meters, says Marshall. At the approach of an edible sea creature, the batfish pushes off with leglike pectoral fins and sucks up its supper. Highly predatory, with a saw-toothed grin, the northern snakehead is unique in that it can "walk" on land with its strong pectoral fins and migrate to other waters. |
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