Photo: A red sea urchin can live for up to 200 years!

(Credit: Jackie Hildering, Marine Detective)

Only along the west coast of North America can you see this beautiful (but prickly) animal. Found in tide pools and shallow coastal waters, they are part of a fascinating web of life — sea otters eat urchins, urchins eat kelp, and kelp provides habitat for many different forms of marine life. The tight relationship between these species offers a perfect example of why we can't manage things in isolation. Removing one piece of the equation can create huge shifts in the overall ecosystem.

Have you explored a tide pool lately? What's your favourite tide pool find?

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1 Comment

Sep 18, 2012
7:48 AM

What do red sea Urchins eat?

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