Zoology Researchers find three major beetle groups coming up one testicle short

Discussion in 'Zoology' started by mscbkc070904, Mar 5, 2005.

  1. mscbkc070904

    mscbkc070904 Premium Member

    BERKELEY – A surprisingly large number of beetles are missing one of their testes, the male gonads of insects. As far as the researchers who discovered this can tell, the insects are not in any way bothered or impaired by this absence.

    The discovery is striking because most animals are bilaterally symmetrical, which means the left and right sides of the body roughly mirror each other. This bilateralism extends to many internal organs, although some systems, such as the human heart and liver, develop or are positioned asymmetrically.

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