Super smart reptile---origami spider

Some time ago, I was ordered to clean a warehouse that had not been used for a long time. I took a broom and was armed to the teeth, and I set off. As expected, its not ordinary dirty. Especially the spider webs in the corners of the wall were in pieces, and some even had small flying insects stuck to them. I have always been curious. The web spun by a spider is so sticky. Why does it only stick to flying insects that intrude into its territory, but not itself? Go back to Baidu. When we look at this origami spider, especially when it is placed on someone’s hand, it looks real! My hands feel hairy!