New Species Of Sea Urchin For Acution At Ebay

You can get almost anything at eBay. Now it seems you can even discover a new marine species at ebay.

Sea Urchins are a member of the Phylum Echinodermata, Class Echinoidea. Rather then having arms or legs the sea urchin actually has long spines as a substitute. These spines are used primarily for camouflage, locomotion, and defensive purposes. The sea urchin feeds on sea grasses, algae, and decaying organic matter. One can see their close relationship to the sand dollar and starfish by looking closely at their underside, near the middle, where the familiar 5 pointed star pattern can be found. Its body is enclosed in a rigid shell, or test, made up of ten double rows of immovable plates firmly joined in a regular pattern. Sea urchins reproduce sexually by discharging either eggs or sperm into the sea, where the eggs are fertilized. This animal, which feeds primarily on vegetation and small organisms, can easily repair damage to its shell, spines, tube feet, and pedicellarieae by regenerating new parts. Sea urchins live on undersea rocks, ledges, boulders, or coral reefs.



Posted by: Ashley    Source