This is a monk-hat jellyfish floating on the surface of the sea, its floating sac is covered with gas, and it has a glowing membrane crown on it, which can adjust its direction on its own, helping them to stabilize in the water when the waves hit. Seeing this, I really want to say: Enough, if I am guilty the law will punish me, why show me this kind of thing? What boy wouldn't want to squeeze through its bulging airbag, or step on it, and snap it, I'm all right, what about you?
In the previous article, I introduced the rubber band of jellyfish, ah no, it is a stingray. These snake and scorpion beauties may have cured your deep-sea phobia to some extent, but rest assured, they are professional.
When the camera moves to the part where the monk's hat jellyfish is hidden underwater, we can see that it is dragging long tentacles behind it, the longest of which can spread to 30 meters underwater. Each tentacle is covered with thousands of spines, and for those small fish and shrimp, the toxin on one tentacle is enough to kill.
Although called "jellyfish", it is actually a community containing both hydra and jellyfish bodies. They have a clear division of labor, when the prey is poisoned, the contracted cells on the tentacles will suck it under the skirt, and the hydra responsible for digestion will secrete enzymes to slowly break them down and absorb them.
A single monk's hat jellyfish can catch more than 100 small fish in a day, but some fish are obviously of higher rank, and warship fish like this can fill their stomachs by devouring the tentacles of the monk's hat jellyfish. Turtles, sea slugs, and sunfish are as simple as powder when they eat monk hat jellyfish.
For humans, whether an animal is dangerous or not often depends on whether you are good enough. We know that jellyfish have no brain, but it has spiny cells. Inside the spine cells are venom-containing stinger sacs with a cover plate at the top and a small needle next to the cover. When the needle hits an object, it is like touching a switch, the cover plate is turned outward, the sea water pours in, and the instantaneous pressure inside the thorn cell forces the thorn wire to shoot out, and the venom enters the prey.
The whole process takes less than a millionth of a second, making it one of the fastest biomechanical processes in nature. Moreover, this series of behaviors does not pass through nerve signals, but spontaneously "indiscriminate attacks" of the spiny sac. So even if the jellyfish is torn to pieces, as long as you don't touch it, it will still dutifully make you sleep.
Although the toxicity of the monk's hat jellyfish is not as exaggerated as the marketing number says, if you have an iron head and have to plate these "blue plastic bags" stranded on the beach, you will experience the severe pain of fire, and within 2-3 days, the body will also have inexplicable whip marks, and may also be accompanied by allergic reactions such as fever, shock, and impaired cardiopulmonary function.
But if you are poisoned by an Australian box jellyfish, it is much simpler, and if you do not treat it within a few minutes, you will be directly declared dead. It is one of the most toxic creatures in the world, with a single tank jellyfish enough to poison 60 adults.
Such a creature whose body is 95% water actually grows eyes in the remaining 5% of the structure, and it is 24 in one. Box jellyfish belong to the first animals in the world to evolve eyes, these eyes are divided into 4 different types, the most primitive one can only perceive the intensity of light, but there are four other "true eyes" like humans have corneas, lenses and retinas, can perceive colors and the size of objects. The distribution of these eyes allows them to see almost completely 360 degrees of their surroundings, and even make 180-degree turns quickly, helping them to deftly avoid obstacles in the ocean.
Since we lose on the line, can't we just avoid jellyfish? Not necessarily. Many people said that when diving in tropical waters, they had the experience of being stung by jellyfish inexplicably, but they did not see jellyfish.
In fact, it is very likely that the handstand jellyfish that hurt them is upside down. These little fairies, belonging to the genus Rhizome and the genus of fairy jellyfish, usually prefer to live upside down on the bottom of the shallow water. The reason why they are upside down is because they have a large number of symbiotic zooxanthellae at the mouth and wrist, and they can provide energy to themselves through photosynthesis of zooxanthellae. Sometimes, in order to get more sunlight, they will gather on the shoals, but when the tide is too late to return to the deep water, they are dried into jellyfish.
What stings humans are a secret weapon at their wrists, Cassiosomes, which come with spiny cells and can move freely. When encountered by water flow stimulation or predation, the inverted jellyfish will be like the ice shooter, green arrow, Sylvanas soul possession, between the electric light and flint shoots out a lot of mucus attached to the "Cassi body", rainstorm pear flower needles generally make the surrounding water body at the same time poisonous, painless harvest of plankton in the sea, so that they deeply understand that a powerful adc late stage is unstoppable.
However, for humans, there are only a few species of jellyfish in the world that pose a fatal danger. When you are stung by an ordinary jellyfish, don't panic, and don't let your friends help you nourish your wounds with urine, as folklore goes.
Because when we are stung, there are thousands of stinging cells attached to the skin. Any attempt to change the salt concentration balance of the solution inside and outside the spiny cell may stimulate the stinger to release more venom, so washing with fresh water or urine is certainly not possible. The wound should be rinsed with seawater to inhibit the activity of the stinging cells, or with a 5% concentration of vinegar or acetic acid to neutralize certain proteins in the toxin. When the area is relatively large, or when it is stung to some special parts, you should immediately seek help from a medical institution.
Of course, none of the above self-help methods are enough to justify your confrontation with it, and when you can't judge the combat effectiveness of the opposite jellyfish, you're right to run.