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Frogs, toads and salamanders are familiar amphibians. They are still active in ponds, rice fields, swamps, streams, rivers and wet places on land. All these living amphibians belong to a large family, the "slip-bodied amphibians", which used to be called "armorless amphibians". As the name su
We already know that based on the development of the temporal part of the skull, that is, the relationship between the development and changes of the temporal foramen, scientists divide reptiles (classes) into four subclasses, namely Anosus, Monossus, and Platysus. and Dicypodia. On this basi
Actin-finned fishes are the most successful aquatic group of all vertebrates, occupying almost all ecological niches in waters on Earth. There are many kinds of them, varying in size, and their adaptability is like "Eight Immortals crossing the sea, each showing his magical powers"; their evo
The sharks we are familiar with are cartilaginous fishes. Nearly all cartilaginous fishes are marine animals. Throughout their life history (the entire process of a living organism from beginning to end), their skeletons are always cartilaginous, with the hard parts usual
Bryos and mosses in plants are two different things! They are a type of primitive aquatic group animals with tiny individuals. However, their body structure is more evolved than that of worms, with three germ layers and a true body cavity, and their bodies are not segmented. They are called "
Archaeocybeans appeared in the early Cambrian period and were extinct by the Jurassic. There is no modern creature that can be directly compared with them. In addition, their bones have various shapes, so scientists still do not understand them all. As for their soft body tissues during life,
Radiolarians and foraminifera are both protozoa, and they belong to the phylum Protozoa of Sarcopodia. In addition to Sarcopoda, protozoa include Flagellates, Ciliates, and Sporozoa. Protozoa are the lowest animals in the animal kingdom. Their bodies are only composed of a single cell. The i
Radiolarians are single-celled protozoa floating in the ocean. They are named after their radially arranged thread-like pseudopods. Protozoa are the lowest type of animals, and each individual is composed of only one cell. In terms of classification, scientists classify t
Dr. Zhexi Luo, a Chinese-American paleontologist, recently published a latest research result in the American magazine Science, reporting that a species as small as the tip of a little finger was discovered in Lufeng, Yunnan, China in 1985 and lived among 190 million A mammal from the early J
At the beginning of the 20th century, the German scientist Wegener proposed the theory of continental drift based on the outlines of the continents on the earth as well as stratigraphic and paleontological data. He believed that during the long period from the end of the Carboniferous to the
Chinese name: Archeopteryx Latin name: Protarchaeopteryx Age of survival: Early Cretaceous Fossil origin: Liaoning, China Physical characteristics: 70~90 cm long Diet: carnivore Type: Theropod Definition: primitive Archaeop
Yongchuanosaurus is a large carnivorous dinosaur that lived in the Late Jurassic. It was named after its specimen was first discovered in Yongchuan County, Chongqing. Yongchuanlong has a large, slightly triangular head nearly 1 meter long, with six pairs of large holes on both sides, which can effec
Allosaurus (also known as Allosaurus fragilis), which lived in the Late Jurassic, was the largest carnivorous dinosaur of that era. They were 12 meters long, 5 meters high, and some weighed more than 1.4 tons. It relied on two tall and strong legs to survive. It walks on its hind legs and has
In 1824, the British paleontologist Buckland discovered the carnivorous Megalodon for the first time, which opened the prelude to the kingdom of ferocious and brutal carnivorous dinosaurs. The discovery of Sinoraptor this time allows people to reveal at a deeper level the secrets of theropod
Megalodon is the earliest dinosaur discovered, but it lived in the Jurassic period. As early as 1677, a British priest described its scattered bones. Unfortunately, the priest did not know what kind of animal had such a large skeleton, so he described it as the remains of a "giant".
In 1942, a larger theropod dinosaur was discovered in the Early Jurassic strata of Arizona, USA. Because it had a pair of thin V-shaped bony ridges on the top of its head, paleontologists named it Bi. Spinosaurus. Dilophosaurus has a stout body, a tall skull, well-develop
Tuojiangosaurus is a medium-sized stegosaurus that lived in the Sichuan Basin in the Late Jurassic. It got its name because its fossil specimens were first discovered in Zigong City in the Tuojiang River Basin. In 1974, the Chongqing Museum hosted a project to conduct sys
Huayangosaurus is the earliest complete Stegosaurus skeleton discovered in the world. Its discovery provides evidence for the theory that Stegosaurus originated in East Asia. However, Huayangosaurus's status in the origin of Stegosaurus still needs to be verified. In the