Sea+Urchins

 Sea Urchins ! There are 950 species of echinoids inhabiting all oceans from the intertidal to 5000 meters deep! Common colours of sea Urchins are dull reds, olives, browns and purples! The name Urchin is a old name for a spiny hedgehoges that sea urchins resemble! sea Urchins are part of the phylum Echinodermata which also includes Star Fish, Sea Cucumbers and Brittle Stars. Unchins typically range in size from 6cm to 12 cm execpt some species can get up to 35cm long!

the urchines spines can be long andsharp in some places oj some speciesw, protect