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A Sea Urchin is a small creature that lives on the sea floor. It grows a hard shell with spines on it. The spines act both as a defence (it is preyed on by Lobsters, Crabs and sea otters), as a means of propulsion, and for trapping algae. Sea Urchins eat algae, barnacles, mussels and dead sea creatures.
There are many different species. A Red Sea Urchin can grow up to 7 inches (18 cm) wide. Some urchins have spines that are poisonous.
The top of a Sea Urchin is round. On its flat bottom, there is a mouth with 5 teeth, and 5 pairs of tiny feet.
In general, male Sea Urchins are black; females are reddish-brown. A female Sea Urchin releases several million eggs that hatch into larvae. They take 2 to 5 years to fully grow into adults.
Those who don't like Sea Urchin, really don't like it. They say it tastes like soap, looks like snot and slime, and smells like a baby's diaper. Fans counter that they have to be absolutely fresh, and when they are, they are sweet and pleasing.
Many fans like the roe (eggs) that are in the female ones, especially in France, Greece and Italy. They just squirt a little lemon on it. In Italy, the roe is often mixed into a pasta dish, particularly linguine or tagliolini. In Sicily, Sea Urchin is often served raw, with the top cut off it and the inside bits still moving. It is served raw at sushi bars, too, spooned out of its shell and put on top of a square of rice.
Sea Urchin is quite expensive at restaurants. Red Sea Urchin is the most expensive; yellow is cheaper.
Cooking Tips
To prepare Sea Urchin, wear very heavy duty gloves, and have a pair of scissors handy. Use the point of the scissors to start an incision into the shell, and then cut a large circle off the top. To cut right in half, insert the point of the scissors into the mouth all the way, and cut. (You can buy special crackers to do this.)
Spoon out all the insides. The roe is the bright orangey yellowish stuff. The other innards are the dark stuff.
The roe will come out in pieces that stay together somewhat, resembling the section of a clementine orange. If you just want the roe, then you use spoons and tweezers to separate the roe from the dark innards after you've scooped them out. Then, gently rinse the roe off, and pat dry with paper towel. If any spiny bits are in the roe, use tweezers to pick them out.
For pasta, it's generally lightly sautéed with some garlic and oil for about 7 minutes.
Allow about 50 Sea Urchins per 4 people when making a sauce from the roe.
Language Notes
The Italian name, "Riccio al mare", means "Sea hedgehog". Sea Urchin is called "wana" in Hawaii.
Also called:  Uni Anthocidaris (Scientific Name) Oursins (French) Seeigel (German) Riccio al mare (Italian) Erizos de mar (Spanish)
Other entries for Crustaceans
Cigales de Mer, Crabs, Lobster, Sea Urchin, Shrimp
Other entries for Shellfish
Mollusks, Whelks
Other entries for Seafood
Octopus, Squid
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