It was late at night, the moonlight came through the window and scattered all over the floor. I sat alone at my desk and let my tears drip onto the poor test paper. This final exam, I was far from the expected result. Forget it, don't think about it. Turn on the light and read some extracurricular books. I turned on the light and found that the biscuit crumbs on the table were moving. I rubbed my eyes and wanted to see clearly. I saw several ants moving the biscuit crumbs. The biscuit crumbs moved and stopped, as if they had a hard time moving them. It was really interesting. I set up some obstacles. I put the pencil in front of them. I saw that they wanted to change direction, but I surrounded them with pencils. Let's see what they will do this time! I used a magnifying glass to observe carefully. A leading ant climbed onto the pencil first, like a commander. Several ants climbed up one after another. They wanted to lift the biscuit crumbs up, but they failed after several attempts. The leading ant lifted the biscuit crumbs up, and the ants behind pushed hard. It took thirty minutes, and the ants lifted the biscuit crumbs as they wished.