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Turtles that live in the sea face challenges that are very different from terrestrial turtles, they have adaptations that allow them to swim, breathe, and find their way during long dives or lengthy swims across the ocean:

  • Sea turtles are strong swimmers. The cruising speed for green sea turtles is about 1.5 to 2.3 kph (0.9-1.4 mph). Leatherbacks have been recorded at speeds of 1.5 to 9.3 kph (0.9-5.8 mph).
  • Forelimbs are modified into long, paddle-like flippers for swimming.
  • Neck and limbs are nonretractile. The shell adaptations necessary for retractile limbs would impede rapid swimming.
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9y ago

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