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Antarctic sea star feeding

Hand holding a small sea star (starfish) with it's stomach out.

A sea star can push its stomach out through its mouth when feeding. The stomach envelops the prey and then digestion juices are released. How could this external stomach be an advantage for sea stars?

Rights: The University of Waikato Te Whare Wānanga o Waikato
Published:17 September 2009Size: 3.67 MB