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The Qinghai-Tibet Plateau has a vast territory and high terrain, and is known as the "Roof of the World". The formation of the Tibetan Plateau was caused by the collision of the Indian and Asian plates (about 50 million years ago). However, scientists have very different understandings of how...
Vertebrates are the highest group in the animal kingdom. They form a subphylum of the phylum Chordata in the animal kingdom - the subphylum Vertebrates. Vertebrate skeleton pattern diagram There is a spine in the body of vertebrates, which is connecte...
During the Devonian period, the earliest lobe-finned fishes appeared and differentiated into two major categories: lungfishes (order) and lobe-finned fishes (order). Unlike ray-finned fishes, early lobe-finned fishes had a suprafungal lobe located above the body axis on t...
For a long time, gomphotheres have been considered a central link in the evolution of proboscis. The origins of Rhynchotheres and Cuvieroniines are more or less related to codons. However, Codon is also considered to be a problematic genus and a garbage bin group in the evolutio...
As early as more than 300 years ago during the Chongzhen period of the Ming Dynasty, a man named Zhang Huadong discovered a "monster" buried in rocks in Dawenkou, Tai'an, Shandong Province. Its appearance looked like a bat spreading its wings, so he created it for him. It was named "Bat Stone...
In the middle Devonian period, some more advanced bony fishes appeared. Part or all of their bones ossify into hard bone. The outer layer of the skull is made up of a large number of bone fragments joined together in a complex pattern, covering the top and sides of the head and back over the...
Cats are the most specialized category of carnivores. Their typical characteristics are: retractable claws, short blunt snout, well-developed canine teeth and cleft teeth, and tooth degeneration after the cleft teeth. According to the current fossil record, the earliest cat was...
When people think of bacteria, the first thing that people think of are probably those pathogenic bacteria that cause diseases and destroy lives. Therefore, it is inevitable to talk about bacteria. In fact, pathogenic bacteria are only a part of bacteria, and in the vast world of bacterial fa...
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