Mantis shrimp, with high value, is the object of collection in the Haizu Pavilion. Put it in an ornamental fish tank, and its bright colors are very eye-catching. But it's a pity that mantis shrimp, who can eat by her face value, has no consciousness of making a vase at all. She will break 6mm glass with one punch and escape from the glass jar. Disdaining to rely on Yan value to eat, mantis shrimp fought for the world with his own pair of iron fists. Crab, clam, conch, no matter how thick the back shell is, all the hard shells can be cracked by mantis shrimp. In the shallow rock area where it lives, there is no food that mantis shrimp can't eat.
How powerful is the iron fist that breaks glass and hard shell? The maximum acceleration of mantis shrimp's punch can reach104km/sec. 2, and the speed can reach110km/h, and he hits the hard shell of the prey with a force of 72kg. The power is equivalent to shooting a 0.22 caliber bullet (small caliber pistol).
Mantis shrimp is the fastest boxer in the animal kingdom, and his explosive power can easily break the defensive armor of other crustaceans. So is it invincible in the sea, and no one can resist its boxing? No, it has a close opponent around it, and it is another mantis shrimp that can compete with mantis shrimp.
Mantis shrimp has not only the fastest fists, but also the strongest armor. Two mantis shrimp confrontation, fist helpless armor. The spear of the child, the shield of the attacker, and the shield of mantis shrimp are not inferior to its spear. Its iron fist and armor are more impact-resistant than the aircraft shell and more tough than the bulletproof material.
Mantis shrimp's iron fist
Mantis shrimp is not a shrimp, but a shrimp, which is the familiar Pippi shrimp. There are 500 species of mantis shrimp living in the rocks and caves in shallow water. Mantis shrimp, who fishes and eats meat, has a weapon at the front end of the prey foot (the second pair of jaw feet). Like mantis, he usually folds the hoe-like prey foot on his chest and pops it out when attacking. There are two kinds of its feet, one is that the front end of its feet is like a spear, which is used to pierce fish. The other kind is like a pair of wooden sticks at the front end of the foot, which is used to break the hard shell. In the ethnic group, the number of piercing players is more than that of punching players (also called crushing players).
You can see clearly a pair of cudgel fists on mantis shrimp's feet. He is also the fastest boxer in the group. Mantis shrimp is very small, just a little longer than his fingers, with an average length of 6 ~12cm.
Mantis shrimp, who is small, has a big temper. If he doesn't agree, he will pick up an iron fist and hit you. Don't underestimate the boxer. mantis shrimp's punches don't rely on brute force blindly. It not only accumulates energy, but also detonates water waves, adding multiple levels of power to his punches.
Mantis shrimp's feet are very elastic and can accumulate strength like a spring. The orange arrow in the above picture marks the spring area where it accumulates strength, contracts the leg muscles, compresses the spring, and instantly releases the attack after pressing to the extreme. The attack speed of accumulating strength is far faster than that driven by muscles alone. The spring leg can be stored for 700 microseconds, but it only takes 2 microseconds to release, which can release more than its own weight 1000 times.
The power of instantaneous eruption is not enough, and mantis shrimp will use the power of water. When mantis shrimp's wooden stick speeds up the attack, it drives the water flow to accelerate suddenly, and the surrounding water flow can't keep up with the speed water flow, resulting in a vacuum cavity bubble. The water current carries bubbles to hit the prey, and the bubbles burst instantly, which adds greater impact to the prey. The water explosion force is stronger than boxing force, sometimes reaching more than twice the boxing force.
Because of the sudden drop of water pressure, the phenomenon of gas appearing in the water flow is called cavitation. The double blow of the wooden stick and cavitation erosion, let alone the fish of flesh and blood, even the thick crustaceans can't stand it. The crab walking sideways was suddenly broken. An oyster that feels that the world is at peace when the shell is closed is smashed in one fell swoop.
Mantis shrimp's armor
Matching with the iron fist, it is mantis shrimp's armor.
Mantis shrimp, who lives among coral reefs, often raises an iron fist to compete for a cave. What the accomplices fight for is the territory, and there is no enmity between life and death, so the competition between them will not hurt the key parts. Two mantis shrimp than strength, strength to speak, strength to give way to the small. When competing for strength, one mantis shrimp bends his back and bends his waist, and the other one punches his tail armor. The invincible iron fist can only make the companion feel the strength, but it can't pierce its tail armor.
The unbreakable tail of iron boxing, like a shield, resists external forces. Outside the shield, there are curved ridges protruding outward, and inside it is a spiral structure like an iron fist. The convex ribs can reduce the impact force, and the twisted structure of the inner rotation increases the toughness of the armor.
The joint team of the University of California and Purdue University found that the external ridge and the internal spiral can not only absorb most of the kinetic energy when it is impacted, but also prevent the crack from spreading on the shell. In addition to compression resistance, elastic armor can also bend inward to release force, effectively protecting the internal body from injury.
In a word, mantis shrimp's armor is stronger, more elastic and more impact-resistant than the carapace of other animals.
The spear of the child, the shield of the attack, the iron fist and the armor are equal.