Describes one parasitic barnacle and how it destroys the reproductive system of poor green crabs. The barnacle is a sea animal with a hard body called a crustacean. It is the only crustacean that cements itself to something solid and remains there forever. Baby barnacles swim around in the water but soon attach themselves to rocks, driftwood, and other crustaceans such as crabs and snails. Sometimes so many of them attach themselves to boats and ships that they slow the vessel down. Even our whales carry these small white shells on their great bodies.

Website: http://reading.indiana.edu/www/famres/pctogeth/ish01/barnacle.html