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    The Echinus melo or watermelon sea urchin -- sea urchins are small, spiny, globular animals which, with their close kin, such as sand dollars, constitute the class Echinoidea of the echinoderm phylum.

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    • Mary Frances Rogers

      Sea urchins or urchins are small, spiny, globular animals which, with their close kin, such as sand dollars, constitute the class Echinoidea of the echinoderm phylum.

    • Teresa Hicks

      ... , the sea urchin is a small, spiny, globular animal that is related to the star fish. Description from omgfacts.com. I searched for this on bing.com/images

    • Angela Koolik

      The Echinus melo or watermelon sea urchin -- sea urchins are small, spiny, globular animals which, with their close kin, such as sand dollars, constitute the class Echinoidea of the echinoderm phylum. #nature #evolution #naturalselection #diversity #supernature #biology #divergence #convergence #darwin

    • Nature Lover

      Echinoidea: The Echinus melo or watermelon sea urchin -- sea urchins are small, spiny, globular animals which, with their close kin, such as sand dollars, constitute the class Echinoidea of the echinoderm phylum.

    • Mary Frances Rogers

      Sea urchins or urchins are small, spiny, globular animals which, with their close kin, such as sand dollars, constitute the class Echinoidea of the echinoderm phylum. Here, the Echinus melo or water melon sea urchin at Capo Caccia Alghero, Sardinia.

    • Little Bopeep

      Sea Urchins: An Interesting Creature…Sea urchins or urchins are small, spiny, globular animals which, with their close kin, such as sand dollars, constitute the class Echinoidea of the echinoderm phylum. The name “urchin” is an old name for the round spiny hedgehogs that sea urchins actually look just like it.Sea urchin has a unique appearance it has spines and it is globular...(continue reading please click an above link)

    • Cheryl H

      Sea urchins, sometimes called sea hedgehogs, are small, spiny, globular animals which, with their close kin, such as sand dollars, constitute the class Echinoidea of the echinoderm phylum. The spines protect the urchin from predators. They inflict a painful wound when they penetrate human skin, but are not dangerous if fully removed promptly. The class familiar in the Caribbean has thin potentially dangerous spines that can reach up to 11.8 inches long.

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