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Purple Sea Urchin

Strongylocentrotus purpuratus

  

Photo ©Patricia McQuade

Sea Urchins are protected from some predators by a hard round shell that has hundreds of spines coming out of it. In between the spines are the feet it uses to move, breathe, and hold on to rocks. On the bottom side is its mouth. Sea Urchins love to eat kelp, cutting it right off at the bottom, where it is fastened to a rock. That could wipe out the kelp forest. But sea otters, crabs and sunflower stars eat many, many Sea Urchins a day. That helps to save the kelp forest.
Earth Cards
Nature Trading Cards

What are Earth Cards?

Trading cards?  Flash cards?  Game cards? Animal cards? Earth cards are all of these.

  • Collect them like baseball cards.
  • Play games with them like a game deck.
  • Use them as flash cards and species cards for learning. 
  • Trade them with your friends.

Order your set of
Nature Trading Cards

Box of 35 cards          $5.00
Box of 65 cards        $10.00
Box of 100 cards       $15.00

Purchase directly from this website with your check or PayPal.

You can customize your box of cards. Just go to Choose your cards and pick the species you want included.  
A box of Nature Trading Cards would be a nice gift for your child's classroom. You can also order them in quantities, at special prices, to use as fundraisers for your school. Schools