Coral Reef Fact:
Sea cucumber
The Sea cucumber’s body wall is made of catch collagen. “This can be loosened and tightened at will, and if the animal wants to squeeze through a small gap, it can essentially liquefy its body and pour into the space. To keep itself safe in these crevices and cracks, the sea cucumber hooks up all its collagen fibres to make its body firm again.”
Fact source: http://en.wikipedia.org/wiki/Sea_cucumber
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