Quick facts about the collector urchin, a spiny urchin that hides from sunlight under it's collection! The collector urchin (Tripneustes gratilla, striped sea urchin, globular sea urchin, Parson’s hat sea urchin). Collector urchin facts!

#echinoderm #urchin #hawaii #ocean #nature #science #learn #marineanimals #invertebrates #marinelife

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