close
    what is an urchin

    0  Views: 1646 Answers: 2 Posted: 10 years ago

    2 Answers

    And isn't a phrase for a street kid, or homeless child, like a theater- term?

    Sea urchins or 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. About 950 species of echinoids inhabit all oceans from the intertidal to 5000 m deep.[1] The shell, or "test", of sea urchins is round and spiny, typically from 3 to 10 cm (1.2 to 3.9 in) across. Common colors include black and dull shades of green, olive, brown, purple, blue, and red. Sea urchins move slowly, feeding mostly on algaeSea otterssea starswolf eels,triggerfish, and other predators feed on sea urchins. Their roe is a delicacy in many cuisines. The name "urchin" is an old name for the round spinyhedgehogs which sea urchins resemble.


    Source > http://en.wikipedia.org/wiki/Sea_urchin


     



    Top contributors in Zoology category

     
    ROMOS
    Answers: 52 / Questions: 0
    Karma: 3420
     
    country bumpkin
    Answers: 41 / Questions: 0
    Karma: 2700
     
    Colleen
    Answers: 67 / Questions: 0
    Karma: 2040
     
    Benthere
    Answers: 3 / Questions: 0
    Karma: 2010
    > Top contributors chart

    Unanswered Questions

    Law Office of Walker and Ismail
    Answers: 0 Views: 4 Rating: 0
    In Tờ Rơi
    Answers: 0 Views: 10 Rating: 0
    fb68comin
    Answers: 0 Views: 8 Rating: 0
    thethaohi88
    Answers: 0 Views: 7 Rating: 0
    KUBET
    Answers: 0 Views: 10 Rating: 0
    Orland park recreational soccer
    Answers: 0 Views: 11 Rating: 0
    KUBET
    Answers: 0 Views: 8 Rating: 0
    > More questions...
    460846
    questions
    721486
    answers
    775309
    users