[JDTuna]

No, they are not related. Snakeheads are in the Channidae family and burbot are in the Gadidae family and are related to cod.

Snakeheads and bowfin look very similar because they occupy the same ecological niche through a process called convergent evolution. Convergent evolution is the process in which two unrelated species evolve similar appearences due to having the same habits (habitat, feeding strategy, etc.). Burbot tend to have different habits than snakeheads, but look very similar to hake (ling), which are relatives.