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Sea urchin eating a crinoid

Sea urchin eating a stalked crinoid.

Sea urchins graze on phytoplankton deposits in summer but in winter will eat anything they can find; this one is eating a stalked crinoid.

Glossary

Rights: National Institute of Water and Atmospheric Research (NIWA)
Published: 3 December 2007Size: 120.6 KB
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