? Snakehead is a kind of freshwater fish, which is widely distributed in freshwater in China. The appearance of snakehead fish is very prominent, and it is not easy to be confused with other fish, because they look very similar to pythons. Their bodies are long and snake-like, and the dark and light patterns on their bodies make them look more like snakes. However, this does not mean that the snakehead and the python have a very close relationship. The snakehead belongs to the fish class, belonging to the fish, while the python belongs to the reptile class, belonging to the reptile. The only thing snakeheads and pythons have in common is that they are both vertebrates, not too closely related, and their resemblance is a simple coincidence.
However, some people believe that snakeheads and snakes look alike, which is related to the evolution of organisms. Fish is a relatively low animal, after a long period of evolution into amphibians, and amphibians after evolution into reptiles. From this point of view, it can also partly explain the phenomenon that snakehead as a fish is more similar to python as a reptile.
above, although snakehead looks like snakes, they are not "relatives" and are not closely related, because snakehead belongs to fish, while pythons belong to reptiles, both of which belong to vertebrates, but the relationship is still relatively distant. And there are high-level and low-level points, snakehead as a fish is relatively low, python as a reptile is relatively high.
Accordingly, we can draw the conclusion of the evolutionary sequence of the two, fish first evolved into amphibians, amphibians evolved into reptiles. But this is only a macro-level evolutionary sequence, which can not be specific to individual species, so snakehead fish did not evolve from snakes, nor did snakes evolve from snakehead fish.
