Duobao fish don't have many thorns. Fishbone is one of the most important structures in fish, which supports the fish body and allows them to move freely in the water. Duobao fish also has thorns in its body. The number of fishbones in different fish is different, so Duobao fish is a kind of fish with fewer fishbones. The fishbone in its body is basically a main thorn, and there are few small thorns. Duobao fish is a kind of marine fish, and there are basically not many spines in marine fish.