It can be a fish as big as a house, it is scary to see it;

It can also be a spider as big as a washbasin. The actual size is not too big, but it is scary enough

When it comes to arthropods, most people think of bugs that are a few centimeters long. However, there is a “giant insect era” in history, the Carboniferous. At that time, arthropods were huge in size. At that time, giant insects dominated the land, and other animals could only avoid them. The Carboniferous, which lasted from 359 million to 299 million years ago, lasted for about 60 million years. At that time, the earth’s climate was warm and humid, with large tropical rainforests and swamps growing, and the atmospheric oxygen content reached 35%, which is 21% higher than today’s. The oxygen content is much higher. It is very suitable for arthropods to multiply and thrive, thus bred a large number of giant insects.

Arthropods began to migrate from the ocean to the land about 450 million years ago. Most of them have a hard shell to prevent water loss, strong legs enable them to support their own weight, easy to walk. By the Carboniferous, insects, arachnids, and polypods among the arthropods all completed their landing trips, and many large-scale populations developed. Among them, the famous giant centipede, they have been very prosperous in the early Carboniferous, and they are widely distributed in today’s Europe, North America and Australia. The segmental thorax belongs to the Pylopod class of the polypedal subdivision, while the centipede belongs to the class Labipod. They are not in the same class and are closely related. Therefore, the segmental thorax is not a giant centipede, but it is a large class with Malu. There are many species of this genus, the small ones are only a few centimeters, and the large ones can reach two meters. The fossils of the giant nodule breast footprint found in New Mexico resemble two parallel tire tracks. These marks show that the nodule breast is at least half a meter wide and 2.4 meters long. It is the largest terrestrial arthropod in history, and it is in any era. A kind of millipede monster.

Insect landings can be traced back to the early Devonian about 400 million years ago, and the earliest wingless insects such as silverfish. The only winged insects that have appeared in the Carboniferous are dragonflies, mayflies and cockroaches. The dragonflies at that time were much larger than they are today. The largest one was called the giant veined dragonfly with a wingspan of 74 cm. It was a predator that fed on small animals. At that time, it was the overlord of the sky and played a similar role to today. The role of the eagle. The scorpions and spiders of the arachnids also landed in the Devonian. At the same time, their distant relatives-the sea scorpion (that is, the scorpion horseshoe crab, extinct), and the largest sea scorpion-the Rheinyecker horseshoe crab, were rampant in the sea. A huge arthropod with a total length of 2.5 meters.

The real scorpions that lived on land during the Carboniferous period were also huge. The Pumono scorpion appeared 350 to 330 million years ago. It is also called the lung scorpion, so it is also known as the “breathing scorpion.” Its appearance is similar to the current scorpion, but its body length is nearly 1 meter (about 70 cm). The lung scorpion is a terrible killer. It mainly captures other arthropods as food, and its tail spines are enough to bring down some small quadrupeds. The huge body of the Carboniferous arthropods is unprecedented. Why did they evolve like this? The current mainstream explanation is related to the atmospheric environment at that time. We know that arthropods are different from vertebrates. They do not have lung organs in the usual sense for gas exchange. Among arthropods, aquatic species mainly rely on the gills respiratory system, and terrestrial species mainly rely on the airway in the exoskeleton to breathe. This method of breathing by oxygen diffusion and penetration made arthropods at that time in an oxygen-rich state for a long time, which greatly stimulated body growth. There is also a view that during the Carboniferous period, the terrestrial ecosystem was relatively simple, and the structure of the food chain was relatively simple. Predators and prey could only adapt to the living environment through the evolution of body size. Through natural selection, the body size became larger and larger. .


By zhiwo

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7 months ago

Human beings feel instinctively afraid of darkness and hugeness, and huge creatures in the deep sea can perfectly meet the above two points. But just looking at the pictures can’t feel the horror of those giants from the deep sea, and we can’t all become deep-sea divers. At this time, games have become the best medium to experience the deep sea. There is a game called “Deep Sea Trek Subnautica” available on steam and wegame. It is about a spaceship crash landing on an unknown planet. As the protagonist, we must collect enough on this 90% water-covered planet. Resources, repair the rocket and return to space. At the beginning of the game, in the shallow water area, we can experience the blue water world, novel fish and seaweed, and get a very pleasant diving experience.

7 months ago

When I was a child, I had summer vacation, and I had to help the family herding cows. The so-called “herding cattle” is to bring the cattle to the ridge or the side of the road where there is grass in the morning to let the cattle eat the grass. After eating at noon, we have to walk a few miles to drive the cows to the hills where the grass is more lush and there is no farmland. The cows can eat more freely, and we can also play freely. We don’t have to worry about the cattle entering the mountains. We will pick some seasonal wild fruits to eat, and compete with our friends to climb the mountains. In short, we have a great time. When the sun was about to set, we drove the cows home. The cows were full and we had a great time.

7 months ago

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7 months ago

When you wash the dishes, you feel that something is crawling across your feet, and you look down at the kind of cockroach the size of an egg, and when you fly by in front of you, you will realize how bad your heart is! Not to mention what happened to the girls, it is me, the big man, who saw this giant cockroach after coming to the south for the first time more than ten years ago, and felt that the chrysanthemum was tight, and the first reaction was to avoid it! It’s too scary to ride a horse. The whole body is yellow-brown and shiny. The picture is determined not to be released. Everyone will be absolutely psychologically uncomfortable after reading it. Saying that it is as big as an egg is to let you feel it more intuitively. In fact, it is very flat, about the length of a general lighter, and the width is about the same~ This kind of thing will make you sick when it kills it. , Believe me, you would never want to hear the “click” sound when you trample them to death with your foot, and you would never want to see the scene of the sap running across. The most terrifying thing is not the biggest one. I can only take a detour when I see them. There is also a big cockroach that can fly. When it flies, it is too terrible, just like a suicide fighter jet, toward you. Bombing, you will not endure any part of your body as their foothold. And every time the community kills insects, especially the villages in the city, when the buzzing spraying machine and thick gunpowder smoke rise, you will see that magnificent scene, and countless cockroaches are gathered from the army. The sewer crawled out of various gaps… the scene was really magical~ and scary!

7 months ago

The scary degree of the size of a creature does not lie in how large it is objectively, but in the horror of the creature itself and its relative size in our cognition. For example, no matter how old a lamb is, no matter how big it is, the last thing we think about is always “is it good to make lamb skewers” and “we can’t roast them all, we have to save some shabu-shabu”. But if you meet a creature that you are afraid of, or a creature that is beyond our cognition, it will be a bit crappy, and Australia is such a place that subverts cognition.

7 months ago

The Komodo dragon is the largest lizard known to exist, with an average body length of 2-3 meters; average weight: males 79-91 kg, females 68-73 kg, longest 3.13 meters and weighing 166 kg (including undigested food Inside), the captive ones are usually heavier than the wild ones. Its tail is almost as long as its body, its limbs are as thick as an adult’s arm, and its head is about the size of a volleyball. The skin color of the pups is green, yellow and black. Adult monitor lizards are dark brown all over. The Komodo dragon has 60 jagged teeth that are frequently replaced and can be up to 2.5 cm in length. Its saliva is usually bloody because its teeth are almost completely covered by naturally torn gum tissue during eating. It has a long, yellow, forked tongue.

7 months ago

The skin of the Komodo dragon is covered with armor scales, which are called small bones containing endosteum, which can be used as a natural chain armor. Like other monitor lizards, Komodo has only one ear bone, the stapes, which is used to transfer vibrations from the tympanic membrane to the cochlea. This means that they are likely to only hear sounds in the 400 to 2000 Hz range. The Komodo dragon can see objects up to 300 meters away, but because its retina contains only cones, it is considered to have poor night vision. Komodo dragons may be able to detect carrion from a distance of 4 to 9.5 kilometers. There are only a few taste buds at the back of its throat. Its scales, some of which are strengthened by bone, have sensory plaques connected to nerves to promote its sense of touch. There may be three or more sensory patches on the scales around the ears, lips, chin, and soles of the feet.

7 months ago

Speaking of this, my uncle thinks that there is such a creature that may appear in our body, and the size may be several times larger than ours. Maybe it can barely be called scary (even frightening, or even disgusting). The uncle was not making up stories to scare the children, it was not ancient legends, it was not passed down in the village, it was true that there was such an existence. The protagonist I’m going to talk about today is the parasite-tapeworm. Tapeworms are huge intestinal parasites. The average adult can reach 72 feet (21.9456 meters) in length. 1 class of Platyfolia. All camp parasitic life. Adults parasitize vertebrates, while larvae mainly parasitize invertebrates or use vertebrates as intermediate hosts.

7 months ago

Mammals are acceptable, but mollusks and arthropods are large enough to make people feel scalp numb. By the way, they can think of alien invasion. They may be swallowed up alive at any time, dead and miserable, and ruthlessly destroyed by a body of mucus. Watching myself die slowly. Not as good as the mammals, you are going to kill me, trample me to death, give me a good time. . . .

7 months ago

I remembered that a few days ago, a friend asked why he was not so scared when he saw lions and tigers, and he was scared when he saw snakes (probably this means, the original question is missing). I think it is because of people’s ability to associate. If we really face the lions and tigers, are we really not afraid? We will definitely be afraid. But their deterrence comes from the deterrence of the hunter on the prey. . . Then why are some of us scared, or creatures like worms and snakes…because we can stage a variety of inner dramas when we see them, and we can scare ourselves to death. Maybe our brains are really worried about being eaten? So there is a natural sense of fear. After all, the brain is an organ for us to conclude that the brain is the smartest organ in human beings.

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