Sailfish

The sail has a scientific name, Istionphorus platypterus , whose body is about 3m long on average, weighs 55kg, but sometimes has a length of 3.6m and weighs up to 60kg.

They had a strange dorsal fin, which looked like a large sailing sail, which made them suddenly stopped or turned horizontally during fast-paced swimming. This wing is twice as tall as his height.

Their shape also has other special characteristics: The slender body is aerodynamic, suitable for fast swimming. The upper jaw is long, pointed like a fish stab, big eyes. The upper part is blue, the lower part is white. Dorsal and body fins have dark blue spots.

Sailfish often wandered around the tropical and subtropical seas. Most of the time they live near the water. Usually, sailfish live alone, but sometimes they swim together in small groups.

Sailfish swim very fast, when necessary they can reach speeds of 90km / h. Thanks to such high speed, they easily catch up with prey (such as mackerel, herring, sardines, drumfish), and use their long beaks to knock their prey. When certain fish are injured or die from this fatal blow, the sail immediately turns back and quickly catches the bait. Occasionally, they rush themselves and crash into a herd of fish so fast and so powerful that they also have to soar out of the water.

The food of the sailfish consists of many types of marine animals, it seems that they eat most fish and squid smaller than them when they meet on the street wandering for food.

Sailfish are quite clever, they know how to save effort when hunting. Occasionally, they coordinate with other sailors to hunt. They cornered the prey and chased the prey near the water, where the prey would find it difficult to find their way out. At this point, the sail alternately took turns eating, while the other sails were on duty to prevent the prey from escaping.

Sailfish lay eggs in large seas, females lay eggs in water, male fish also release semen into the water - eggs float along the ocean currents. The eggs hatch quite quickly: the fertilized eggs hatch into fry within just 1.5 days.

Each reproduction, a female sail can lay water from 4-5 million eggs , but most of these eggs cannot grow to adulthood. In return, young sailors grow very fast: young ones that survive within 1 year have reached about 1.2 m in length.

The average life of sail is about 10 years.