Ask for a short article about introducing paleontology of at least 3 words.

"flying reptiles". Pterosaur, which appeared on the earth in Mesozoic Triassic, was the first vertebrate to fly, but some people suspected that it was only a hollow name and could only glide in the sky at best. However, the latest research shows that pterodactyl can not only fly like a bird, but also be an expert in flying because of its well-developed nerve tissue processing balance information in the brain. Researchers at Ohio University in the United States reported in the latest issue of Nature that they used computer tomography scanning technology to build a three-dimensional image of pterodactyl brain based on fossils. The image shows that the cerebellar lobe of pterodactyl is quite developed, and its mass accounts for 7.5% of the brain mass, which is the highest proportion among known vertebrates. In contrast, the cerebellar lobes of birds who are good at flying only account for 1% to 2% of their brain mass. The largest pterodactyl is the Pterosaur. The spread wings are 12 meters long. The world's first pterodactyl embryo fossil was recently discovered by paleontologists Wang Xiaolin and Dr. Zhou Zhonghe in the Jehol biota in western Liaoning, China. On June 1th this year, relevant research papers were published in Nature, the most famous academic journal in the world. Because of this great discovery, Nature also distributed relevant news reports and pictures in the "Today's News" column on the homepage of its website. This importance was also reported in the American magazine Science published on June 11th. Due to the discovery of such an extremely precious fossil, people today have obtained strong evidence that pterosaurs, the Mesozoic air overlord who appeared at the same time as dinosaurs and died out at the same time, flew into the blue sky about 7 million years earlier than birds, were not viviparous, but laid eggs like other reptiles and birds. Brachiosaurus dinosaur body length: 23 meters long, 12 meters high, dinosaur weight: 77-8 tons, dinosaur food: herbivores, which ate leaves at the top of trees. Age of survival: 145 million-156 million years ago, place of survival in the late Jurassic: Grand Valley, Colorado, USA, and Tanzania, Africa. Identification: Short-tailed dinosaur species: Diptera, Diptera, English name of Brachiosaurus. Jane: Brachiosaurus is one of the tallest and largest dinosaurs. It has a long neck, a small head and a stubby tail. Walk on all fours. Brachiosaurus' front legs were longer than its rear legs. Each foot has five toes. There are claws on one toe in each forefoot and three toes in each hind foot. Brachiosaurus' teeth were straight and sharp. Brachiosaurus's nostrils grew on the top of his head. Brachiosaurus had a very small head, so it was not very clever. They live in groups and go out together. Brachiosaurus didn't make a nest when it gave birth to young dinosaurs, but gave birth while walking, so these dinosaur eggs formed a long line. Brachiosaurus didn't look after his children. When they eat, Brachiosaurus swallows the whole food without chewing. Brachiosaurus is one of the largest and heaviest dinosaurs that have ever appeared. A person's head can only reach the knees of this behemoth. It has a huge body, a long neck, a small head and a long tail. A huge, strong heart constantly pumped blood from the neck of brachiosaurus into its cerebellum. Some scientists think it may have several hearts to pump blood all over its huge body. Along the cervical vertebra, the developed muscles help support its head. Unlike other dinosaurs, brachiosaurus had longer front legs than its rear legs, which helped it support the weight of its long neck. Brachiosaurus ate the young leaves on the treetops, which other herbivores could not reach. With its long neck, it can pick the highest leaves. So do giraffes today. Brachiosaurus has a well-developed jaw, like sharp-edged spoon-like teeth, which can pinch off tender branches and tree buds. Brachiosaurus needs to eat a lot of food to supplement the energy needed for its huge body growth and moving around. An elephant can eat about 15 kilograms of food a day, and brachiosaurus can eat about 1,5 kilograms a day, which is ten times that of today's behemoths! It may travel in groups every day, wandering in the endless prairie, looking for fresh trees. Brachiosaurus is one of the large dinosaurs, living in the Jurassic period. You can easily tell from the fact that its forelimbs are longer than its hind legs by distinguishing it from other dinosaurs. Its shoulders are about 5.8 meters above the ground, and its head is about 12 meters above the ground when it is lifted. Although it may feed on the branches and leaves of high trees, some scientists think that it will not keep its head lifted for too long-that will make it very difficult to transport blood up. Brachiosaurus is the largest animal on land in history. Although dinosaurs such as Supersaurus, Megasaurus and Seismosaurus have been dug up, it is still uncertain because the complete skeleton has not been dug up. The nostrils of Brachiosaurus, Lei Long and Liang Long all grew on the top of the head. It is certainly easy for such a tall animal to feed on the branches and leaves of the tall tree. Like other giant herbivorous dinosaurs, it has a long neck and a small head, and the mound on the top of its head is its nose. Brachiosaurus had tall forelimbs, hunched shoulders, and the whole body leaned back along the shoulders, which can still be seen in some tall animals such as giraffes. Dinosaurs are the general name of reptiles on the earth 13 million years ago. There are many kinds of them, with different body sizes, shapes and living habits. Land, sea and air are all places for dinosaurs and reptiles. As big as the Mamenxilong found in Hechuan County, Sichuan Province, China, it is 22 meters long, 3.5 meters high and weighs 4-5 tons. Usually live in a lake with a water depth of 5 ~ 1 meters, use the buoyancy of water to float the heavy body and feed on algae in the water. The whole body of the small parrot dragon is only the size of a puppy. Some can fly in the air, like a long-tailed beak dragon, with sharp teeth and a long tail. There is a film shaped like a fly swatter at the end of the tail, and the flying tool is the wing film. Some are overlord in the sea, such as Himalayan ichthyosaur, which is carnivorous and good at swimming, with long jaws and teeth in its mouth, and looks like dolphins today. Some warriors on land, such as Stegosaurus, are 6 meters long, with a small head and a high arch on the back. There are two rows of triangular bone plates standing upright and bone spurs at the tip of the tail, which are weapons against the enemy. About 13 million years ago, due to the changes in topography and climate caused by strong crustal movement, the dinosaurs that dominated for a while were completely extinct on the earth. The reason for the extinction of dinosaurs is still inconclusive, but it should be noted that the reasons are various and complicated, and it is the result of the interaction between the change of external environment and the internal factors of dinosaurs at that time.