Crabs are animals that live in the water, but they don't stay in the water all the time. They sometimes come ashore.Generally speaking, the time for crabs to go ashore is in the evening, and it is easier to see crabs coming ashore at about twelve o'clock in the evening.However, if there are fewer people on the shore during the day, the surrounding is quieter, and the sunshine is better, then crabs will also come ashore during the day.
Many people think that crabs can't move on land because they breathe with their gills, but in fact, crabs can store some water in their bodies, so that even if they move on land, they can persist for a period of time.When the weather is not so hot, they can keep breathing on land for a long time.
As mentioned above, there are many reasons why crabs come ashore.One of the main reasons is that crabs will come to the shore to feed.When crabs come ashore at night, their main purpose is to feed, and they concentrate on the first half of the night.Sometimes, some river crabs come ashore because the water temperature is not stable, such as long rain or large temperature difference between day and night, which will lead to unstable water temperature, at this time crabs will also come ashore.Sometimes a large number of cultured crabs come ashore, which may indicate that there is a problem with the water quality, or that they are sick, in which case they have to be dealt with in time.
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