In addition, crabs are rich in nutritional value, including protein and cholesterol, and their bodies are protected by hard shells. Most of them live in the sea, only a few crabs live on land, they live in wet caves and migrate to the sea when they breed. Some crabs tend to breed in fresh water, and most of them live under the rocks of streams. Therefore, crabs may crawl home because they are looking for food or habitat.
In a word, crabs usually go home as a good sign, but in fact they may just go home to find food or habitat. Whatever the reason, we should respect their arrival and handle it properly.