? Chinese sturgeon belongs to a kind of fish, which belongs to bony fish and sturgeon. They are also a very old fish, which existed more than 100 million years ago. Although their number is relatively small now, they still exist today. Although there are many species of fish, they also have some common characteristics, which are also reflected in their body structure. For example, most fish have spines, because fish spines can support their bodies. The Chinese sturgeon, however, is an exception because it has no spines.
Although Chinese sturgeons do not have fish bones, they have similar structures that can play the same role as fish bones, that is, their cartilage. From the outside, the Chinese sturgeon has five elements of bone plate; the internal structure is a cartilage, the color is white. Their bone plates and internal cartilage play an important role in supporting their bodies, and they can support their bodies without fish bones. The rest of their bodies are basically meat and viscera, and there are no thorns. In fact, not only their meat, but also their cartilage can be eaten, which is more convenient for people who do not want to deal with fish bones. However, only the artificially cultivated Chinese sturgeon is edible, and the wild Chinese sturgeon is a protected animal. Does
? As mentioned above, the Chinese sturgeon has no spines. But they have a spine. Animals can be divided into vertebrates and invertebrates according to the existence of vertebrae, and Chinese sturgeon belongs to one of the vertebrates. Moreover, Chinese sturgeon belongs to a very ancient vertebrate, which is a very primitive vertebrate, and also has the alias of "living fossil in water". Chinese sturgeons not only have vertebrae, but also have obvious bone marrow in their spines. Their spines are very important to them, allowing them to move freely in the water and carry out various activities.
