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    • Paddle crab on sand underwater.
    Rights: Malcolm Francis, NIWA, Creative Commons Attribution 3.0 Unported Published 11 January 2012 Size: 24 KB Referencing Hub media

    Paddle crabs use the paddles on their rear legs to swim or burrow into the sand. They are camouflaged (similar colour to sand) to protect them from predators.

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      Adapting to marine habitats

      Being able to adapt is a matter of life or death. In a perfect world, organisms would not need to adapt. However, changes to the environment and food web mean that organisms need to move, if they ...

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