Why are the teeth of sea urchins so sharp?

1. Why don't sea urchin teeth wear?

Because the teeth of sea urchins have the magical effect of automatic grinding.

We often see sea urchins sticking to rocks like spikes on the beach, but few people know that sea urchins actually have teeth.

Sea urchin teeth evolved from eating stones, and eventually they can become as sharp as knives and will not degenerate back.

Second, sea urchins are actually pests in the sea!

Yes, because sea urchins eat a wide range of things.

Carnivorous sea urchins feed on worms, mollusks or other echinoderms at the bottom of the sea. The main foods of herbivorous sea urchins are algae and various algae. Therefore, sea urchins will destroy the animals and plants in the sea and seriously affect the marine ecological environment.

Third, the nutritional value of sea urchins.

1. protein contained in sea urchin yellow consists of 17 amino acids, which is not only of good quality, but also of large quantity.

2. The fat content of sea urchin per100g is 7.2g, which is mainly unsaturated fatty acids and phospholipids beneficial to health.

3. The sugar content per100g of sea urchin is14.9g.. The content of calcium and phosphorus in minerals is much higher than that in milk.

4. Sea urchin is rich in lecithin, protein and riboflavin. It is a high nutritional supplement. In addition, sea urchin yellow also contains more minerals such as vitamin A and vitamin D.

4. Why are sea urchins so expensive?

Sea urchins are widely distributed, from intertidal zone, shallow sea to thousands of meters deep sea, and rarely appear in large numbers under normal circumstances.

Only when kelp is ripe in June and July will sea urchins hide quietly in kelp, which is the best fishing season.

Sea urchins are difficult to catch, and the high cost of fishing leads to high prices.

5. How to eat sea urchins?

1, nutritious sea urchin porridge

Preparation materials: a few sea urchins, a leftover piece of rice, a few pieces of basil leaves, a spoonful of sweet and sour ginger, salt and white pepper.

Step 1: Add 3-4 times of water to the remaining rice, bring it to a boil over high heat, and turn to low heat for 15 minutes. In the meantime, peel off the yellow sea urchin for later use.

Step 2: Put the prepared sea urchin into the cooked porridge and stir evenly, slowly, then turn to low heat and cook for about 6 minutes.

Step 3: finally, add chopped basil leaves, sweet and sour ginger, white pepper and salt to taste.

2, sea urchin loofah soup

Preparation materials: loofah, sea urchin yellow, onion, ginger, egg, pork belly, soy sauce, vinegar, salt and sesame oil.

Step 1: Wash the loofah, scrape, peel and cut into pieces. Slice pork belly, mince onion and ginger, and beat eggs well for later use.

Step 2: put a little oil in the pot. When the oil is hot, stir-fry the sliced meat, add a little vinegar and soy sauce, and add onion and ginger.

Step 3: Add the loofah slices, stir fry, and add salt until the loofah is translucent.

Step 4: Add two bowls of boiling water and bring to a boil. When the soup boils, add the broken egg liquid. Finally, add a tablespoon of sea urchin yellow, stir well, and add a few drops of sesame oil to serve.