I wonder how the squid live, why do the squid die in swarms?

Not only can squid swim quickly in the sea like a fish, but it also has a set of casts"Smoke screens"stunt. The squid has an ink sac in its body, which stores the ink glands that can secrete natural ink, and when it is attacked or in danger, the ink sac shrinks and shoots out the ink, and in an instant, the sea water"Smoke"Rolling, it was pitch black, and he took the opportunity to escape. It can also use the toxins in the ink to anesthetize small animals, so it is also called cuttlefish.

In fact, the squid is not a fish, but a descendant of mollusks. Among mollusks, squid can be called a formidable soldier. Its body resembles a rubber bag, and its internal organs are wrapped in the bag.

There are fleshy fins on the edges of both sides of the body, which are used for swimming and keeping the body balanced. The head is shorter and has well-developed eyes on both sides. It has a long mouth on the top of the head and a jaw in the mouth that can bite food.

The feet of the squid are born on the top of the head, so they are also called cephalopods. 8 of the 10 feet on the top of the head are shorter, with dense suckers on the medial side, called the wrists; There are also two long, free-moving feet, called tentacles, with only suction cups on the inside of the front end. The wrist and tentacle are the predation and combat of the squid**, not only the weak life will die under the squid's wrist, even if it is a behemoth in the sea - the whale, it is difficult to deal with the large squid with a body length of more than ten meters.

There is also a funnel on the ventral surface of the squid's head, which is not only the outlet for reproduction, excretion, and ink, but also an important locomotor organ for the squid. When the squid's body is tightened, the water in the pocket-like body can spurt out of the mouth of the funnel, and the squid uses the reaction force of the water to move forward rapidly, like a strong crossbow off the string. Since the funnel is usually always pointing forward, the squid movement is generally backward.

The special structure of the squid's body gives it the ability to swim quickly. In order to adapt to this way of swimming, in the long-term evolutionary process, the shell of the squid gradually degraded and was completely buried inside, and the function was changed from the original protection to support. The shell of the squid is called again"Sea crickets", can be used in medicine.

Squid live in deep ocean water, and swim from deep water to shallow coastal water to lay eggs during the warm spring breeding season every year, this phenomenon is called reproductive migration, and a large number of squid after spawning die in the offshore sea.

The largest squid in the world is the king squid. They generally live in the depths of the ocean, resting in the deep sea during the day, and now, the smoke screen created is not only the smoke emitted by chemical combustion, but also the anti-radar and anti-infrared detectors.

He is free and carefree to live.

Squid live mainly in shallow waters along tropical and temperate coasts, and often migrate to deeper seas in winter. The common cuttlefish breed in spring and summer, laying about 100 300 eggs. The squid has 8 short wrists, two long tentacles for catching and eating, a short neck, a head connected to the torso, and two wrists that extend into slender tentacles for swimming and keeping the body balanced.

The head is shorter and has well-developed eyes on both sides. It has a long mouth on the top of the head and a jaw in the mouth that can bite food. The feet of the squid are born on the top of the head, so they are also called cephalopods.

Eight of the 10 feet on the top of the head are shorter, with dense suckers on the medial side, called carpals; There are also two long, free-moving feet that retract into two sacs, called tentacles, and only have suction cups on the inside of the anterior end. Squid mainly eat crustaceans, small fish, or other mollusks. Squid is also the most prominent smokescreen expert in cephalopods.

When encountering an enemy, it will emit a smoke screen and escape.

Living on the decay of the ocean.

Little fish stealing other fish!

Live because you live.

Keep breathing and don't lose your breath.

Most common cuttlefish are between 1 and 2 years old, and they only reproduce once in their lifetime, and they can live for more than 5 years if the living conditions are more suitable.

Just live like that, eat.

Because of the infection, when one squid gets sick, the other squid will also catch the same disease, so they die one after another.

Due to human activities, the marine ecological environment has been damaged unprecedentedly, resulting in the abnormal behavior of squid.

When the water temperature rises, the oxygen-carrying capacity of the blood will suddenly decrease by half, causing various internal organs in the body to suddenly lack oxygen, resulting in sudden death.