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Saturday, February 25, 2012

The Crabs That Build Their Own Galaxy

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Small hermit and soldier crabs in Malaysia and Australia build their home digging a deep hole in the sand on a beach. They got a good idea of how to move sand up during this construction. Down in the hole this crab is making sand balls and later pushes them up to the surface, 2 or 3 balls at a time. They form a kind of sand ball flower or sand ball galaxy.

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