Animal Update - March 14

Published March 14, 2014

Purple Urchins in Surviving Through Adaptation

Five purple sea urchins have been added to our Surviving Through Adaptation exhibit.

national aquarium sea urchin

Did you know? Sea urchins are sometimes referred to as sea hedgehogs! These spiny animals are echinoderms - they're related to sea stars, sand dollars and sea cucumbers.

Sea urchins have movable spines that are used mostly for protection. Depending on the species, the spines can be solid, hollow or filled with poison!

Be sure to check back every Friday to find out what’s happening!

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