Sailfish belong to the family Sailfish. Its body is prismatic, its surface is dark blue, its back is dark brown and its abdomen is pure blue. This kind of body color is rare in general coastal fish, and it is obviously the main feature of oceanic fish. Adult swordfish is 4~5 meters long, up to 6 meters long and weighs about 300 kilograms. It is a fierce big fish. Its two dorsal fins are very strange, one is long and sharp, the other is too short to be seen, and its caudal fin is like a crescent moon. Swordfish swim at an amazing speed, reaching 1 19 kilometers per hour, which is about twice the speed of ordinary trains. You can also dive 500~800 meters to chase aquatic animals such as fish.

Fierce swordfish

Swordfish is a fierce fish in the ocean. Its upper jaw sticks out to form a "sword". This sword is fierce, just like the tail of the fiercest long-tailed shark. Swordfish usually live in the depths of the ocean, and it is quite satisfied. If provoked, it will be desperate to pounce on the "invading enemy", and sometimes the ship will be wrecked by the violent collision of swordfish.

Streamlined body

Swordfish is remarkable in the fish family, and its spindle-shaped body is extremely agile. Two dorsal fins are also strange. One is long and pointed, and the other is too short to be seen. Swordfish's tail fin is like a crescent moon. Swordfish has a dark blue body surface and a light blue abdomen, which is rare in general coastal fish.

food

Swordfish feed on some small fish. They often break into mackerel and chase their prey. Because mackerel likes to live in groups, which is exactly what swordfish wants. Swordfish break into a school of fish, don't chase them all at once. The swordfish put its body flat first, then suddenly jumped out of the water, fell down, jumped up again and fell down again. After a few jumps, some Beijing fish were shocked. At this moment, the swordfish rampaged through the school of fish with lightning speed, and its "sword" showed great power. In a short time, a dozen mackerel died by its "sword". Then, swordfish wolfed down a meal.

Live torpedo

Sometimes swordfish will play an unusual "joke" on ships sailing at sea. At the end of World War II, a ship sailed regularly in the Atlantic Ocean. Suddenly, the sailor on duty gave a desperate cry: "Torpedo! Torpedo found in the left string! " Then the alarm sounded and the crew panicked. The helmsman turned the rudder, changed course and avoided the torpedo. I saw a black thing rushing towards the ship at lightning speed. Then, there was a deafening sound ... However, the ship did not explode. At this time, I found a hole in the hull. It turned out that it wasn't a torpedo, but a big swordfish played a joke on the boat.

Once, a warship was training at sea. Suddenly there was a loud noise, and the sailors didn't know what happened for a while. On closer inspection, it turned out that a swordfish had penetrated the planking at the anchorage on the stern side. Seeing that the swordfish was about to escape, it was too late to say, and I don't know who accurately caught its tail with a thick rope, and the swordfish was hung on the deck. According to the measurement, this swordfish is 5.28 meters long, of which "Jian" is 1.54 meters long. Weighing 660 kilograms.

Help sharks hunt whales.

Sometimes you can see such a scene at sea: a group of sharks trapped a giant whale in the middle. They bit the whale with sharp teeth, and soon the whale fainted. At this time, the swordfish also arrived and poked around the whale with his "long sword". Strangely, it didn't eat a bite. It seems to be specially for sharks. This trick of swordfish is still elusive.