Answer: sea urchin is a creature in the ocean. It is a crustacean. It is covered with thorns and pricks people like needles. 1998, I went to Weihai with my friends. Then I went to the seafood market and didn't know about sea urchins. Seeing fishermen selling it, I asked what it was. Fishermen call this sea urchin and ask them how to eat it. The fisherman told me to dig out the sea urchin meat, put the eggs in it and steam it with less water. I said the food was fresh, so I bought five. At home, we put sea urchins and eggs together, steamed them with less water, and made several side dishes. Sea urchins are steamed as fishermen say. It's really fresh, and we all scramble to eat it.