
The Sea Urchins are related to sand dollars, sea lions, and the sea cucumbers.
The Sea Urchin got it's name from an old English word which means it is like and American porcupine.
They mainly live in cooler waters for a search and move to shallow waters to search for food.
They use they're mouths to clean rocks.
Mouth Is found underneath the body.
Sea Urchin's do not like sunlight so they try to stay in the deeper waters.
The Red Sea Urchin is the largest Species of Sea Urchins in the world.
The Red Sea urchin usually stays in the shallow waters.
Some Sea urchins take 4 to 5 years to reach it's full size.
The purple Sea Urchin has shorter spine unlike the other Urchins.
The Green Sea Urchin is found in the Gulf of Maine.