Eels have spines, and they are an edible fish that is still a fish, even though it looks more like a snake on the outside. Most fish have spines because their spines serve the same purpose as human bones, to support the body. The role of the spines is also greater for eels, because the spines can make them smoother to carry out a variety of activities, but also to protect the eel's internal organs from injury. A, eel has no thorns

eel has thorns, eel belongs to the eel family, eel genus of fish, although their appearance and the snake is more similar, but they still belong to a kind of fish. Most of the fish have spines, because the spines are very important to them. The spines of the fish and the human skeleton play a similar role in supporting the body, so the eel also has spines. The role of the spines in the eel's body is very great, with the spines, the eel can more smoothly carry out a variety of activities, and the spines can also protect the eel's internal organs, reducing the chance of them being injured.

Although eels have spines, there are not many spines in their bodies. Compared to other freshwater fish, it's one of the less spiny ones. They basically only have one main spine in their body, which is sort of their spine. This main spine is relatively large and runs through the entire body, so there are fewer smaller spines around it. Because the eel's spines are relatively small, and the nutritional value is relatively high, all by a lot of people's favorite.

Second, the eel has no scales

The eel is not scaled, although they belong to the fish, but they are scale-free fish. The reason why they have no scales is because they are always drilling in the reef and the uneven place under the water, so their scales are slowly degraded. Eels are more similar in appearance to snakes, but they have the basic characteristics of fish. Eels are more similar to salmon and have migratory habits.