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Coral Reef Fact:

‘The Heart Urchin Pea Crab’ from MORPHOLOGIC on Vimeo.

Most individual Red Heart/ Cake Sea Urchins form relationship with a small crab, the Heart Urchin Pea Crab(Dissodactylus primitivus). The crab spends its life on the urchin within the protection of its spines.

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