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The male specimen of the common green sea urchin Strongylocentrotus droebachiensis shown on the cover was caught in the act of releasing sperm. Jessica Marks and her colleagues employed this species to investigate how the morphology and ultrastructure of sperm vary among different populations of green sea urchins and how closely related these populations are to each other genetically. (Click on the photo to read the rest of the blurb). Biol. Bull. (2008). 215: 115-125.
Download the pdf here.
Sugar-coated sea urchin eggs could have sweet implications for human fertility
UW Press Release or Scienceblog