Why don't fishing fish build nests at night?

1, the activity characteristic of big fish is to move three times a day, and small fish sneak past at night, just the opposite. In fact, this is the result of animal self-protection. In the fresh water of China, most carnivorous fish come out for food at night, such as snakehead and catfish. This is a universal law. These fish have poor eyesight and mainly rely on taste and other organisms to disturb the water surface to find prey. Small fish try to avoid becoming them. This is also the result of evolution and instinctive reaction, which has nothing to do with whether there are really fierce fish in the water. Larger fish are more afraid of humans than other fish, so they will go to the shore for food at night.

2, analysis of the reasons, probably in the waters with many small fish, big fish dare not pull over during the day, small fish like to use their hands.