As long as it is a friend near the sea, I believe that every summer you can see those jellyfish that are a little annoying, after all, once some jellyfish are touched by it, the skin will be as painful as being burned, and some can leave permanent scars.
It is said that the Australian box jellyfish is so toxic that the whole body of the box jellyfish is almost transparent, don't look at it, it is only the size of a football, but when it is stabbed, 30 seconds is enough to be deadly.
Of course, the focus of our attention here is that don't look at some jellyfish with transparent bodies, seemingly unremarkable, but jellyfish existed on Earth as early as 650 million years ago, and experienced the first mass extinction at the end of the Ordovician on Earth (440 million years ago, at the end of the Ordovician, the event caused about 85% of the events to occur. to the fifth Cretaceous mass extinction (the late Cretaceous event of about 65 million years ago led to the overall extinction of the dinosaurs that have dominated the earth for a long time since the late Triassic period) are still alive in the ocean and even throughout the ocean. Perhaps they are the oldest living animals on earth, and they are not worthy of this long river of time.
If, on the calm surface of the sea, a group of jellyfish suddenly shrink their bodies and flee to the depths of the sea, it is very likely that a storm at sea is coming.
After observation and study, scientists found that the original jellyfish had received the information that the storm was coming. Jellyfish's unique auditory system allows it to quickly know the signs of sudden weather changes. The principle is this: air and waves constantly rub against each other in the process of forming a typhoon, which produces a frequency of 8 to 13 hertz, an infrasound wave that travels at a speed of more than 1450 meters per second, which indicates that the storm is coming, just like the weather forecast. This kind of infrasound wave that people can't hear, but jellyfish can hear. (This natural passage is copied from the book "The Mysteries of Nature")
Jellyfish are so gifted that they don't need to learn or need scientific instruments, but they can predict the formation of storms earlier than humans. Born to be a "weather expert".
In fact, at this point, I have to mention a point of view - that is, there should not be higher animals in the world, and all living things have evolved from the common ancestor for a long time, and they are all equal in terms of evolution. We don't have the eyes and wings of eagles, we don't have the ability of animals to anticipate danger, we can't jump high, we can't run fast. Of course, animals do not have our own human minds.
I agree with this view, after all, it is a fact that cannot be denied.
But the same thing I also admire is a saying - if you are not of my race, your heart will be different.
If gorillas have thoughts and creative intelligence, then Earth may be a realistic version of Rise of the Apes. Treat animals equally, but you can't put it first (personal opinion) above people.
It's a bit far.
The ability of jellyfish to predict storms in advance has opened up new ideas for our scientists, and in the face of disasters, human strength is too small. We can only prevent and mitigate the damage of disasters in order to minimize losses. The beautiful ocean is a huge treasure trove, and scientists are looking forward to and grateful that scientists can discover more "marine meteorological experts" and give birth to more new technologies to contribute to human civilization.
The same is true of marine life that can predict earthquakes in advance, such as moray eels.