It's very hot these days, and I saw many earthworms crawling on the road at night. Don't you think they want to die? Why would they do that?

Earthworms usually climb out when it rains. Because the rain poured into the soil, the earthworm was deprived of oxygen and climbed out.

This is not the death of earthworms, but the fault of human beings. Before there were concrete fields, there were fields everywhere. Earthworms crawl out and may come back at any time. Now that they have climbed to the concrete floor, they can't go back.