The squid jumping dragon gate is a beautiful legend in China, but the lively fish loves to jump out of the water. This is not a legend. Thousands of fish smashed out of the water and jumped on fishing boats. These wonders, fishermen who have been going to sea for a long time may Occasionally, it may appear on the lake after heavy rain. In fact, jumping out of the water is not particularly difficult for many fish. Fish such as squid and squid are good at jumping, and some fish are very skilled in jumping.
Why do fish jump out of the water? The study found that fish jumped out of the water, some for food, some to escape chasing, and some to attract the opposite sex.
One of the reasons why fish jump out of the water: foraging
Food is an essential element of survival, and fish develop unique predation skills Canned tuna production line . After discovering the prey, the fierce sharks rushed to the prey like a flying arrow. After successfully capturing, they jumped out of the water by inertia. The prey in the mouth lost vitality due to lack of oxygen before falling into the water. Sometimes, the big shark It even jumps out of the water to capture creatures such as seabirds. There are also tropical meat wanas. In order to prey on insects, small birds or mammals on the water, they will first bend the body into S-shape in the water, then quickly stretch out of the water, just like a full-bodied bow. Released, the jumping power is very strong.
The second reason why fish jump out of the water: self-protection
When fish are caught in the water, in order to protect themselves, some fish will jump to the surface of the water, thus confusing the enemy, hiding the traces, re-entering the water, often changing the escape route and fighting for escape time. For example, big head squid, when they encounter fierce enemy bull sharks or hammerhead sharks, they will jump out of the water to stir up huge waves and confuse the pursuit of natural enemies.
The third reason why fish jump out of the water: attracting the opposite sex
In fish life, male playfulness is a way to attract the opposite sex. For flock-type fish such as toothed whales, dolphins, killer whales and beluga whales, male fish jump out of the water and into the water, causing waves on the surface of the water, more often to attract females.
In addition, there are some other reasons. For example, whales, sharks and tuna are often entangled by long-legged fish with straws and parasites. In order to get rid of the long-legged fish, they frequently drill into the water, or suddenly jump out of the water and wash away the long-legged fish attached to the body.
The survival of fish is inseparable from water, but the active behavior of fish jumping out of the water allows them to better adapt to changes in nature and survive better, which is of great significance in biological evolution.