I found the secret of the snail

I found the secret of the snail. The Huiyang Freshwater Center, the third grade of the fourth grade, Huang Ying, in front of my house, has a large green vegetable garden. There are many kinds of vegetables in the garden, which is very popular. One day, after I got up, I found that there were several white lines on the floor in front of the house, and there was silver and white light in the sunlight. what is this? Curiosity drives me to figure it out. I walked along the white line, and the manufacturer of the white line found on the grass in front of the door turned out to be a snail. Back home, I asked my father: "Why does the snail leave a silver-white thread after crawling?" Dad glanced at me and smiled at me and said, "I don't know, you can go to the book and look for it. I haven't bought a few books about "When 100,000 Why" in two days? Look for it, maybe you can find it." I carefully read the book and looked at it seriously, for fear of missing it. Finally, I found it. The white line left by the original snail was the snail's excrement. It helps the snails crawl. The book also said that snails like wet places, they can see their footprints on the grass in the vegetable garden and on the wet wall. At this time, another thought flashed in my mind: Is the snail a pest or a beneficial insect? I decided to go to the vegetable garden to find the answer. In the vegetable garden, I found a lot of small snails. In the place where the snail climbed, the leaves were eaten up. This must be a masterpiece of snails. Now, I am quite sure that the snail is not a beneficial insect, it is a pest. I solved the problem that the snail brought to me, and I am very happy. Yes, in nature, as long as you are good at observing, you will find something.

I found the secret of the snail

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