I've heard that giant snakehead carry parasites. (nookipedia.com)
This term was originally targeted toward animals that can do substantial harm when released into environments in which they do not naturally appear — for example, Burmese pythons in the Everglades or snakehead fish in the rivers of Maryland and Virginia. (petbusiness.com)
Dining on invasive fish such as snakehead and lionfish can reduce their numbers, but we can't entirely eat our way out this problem. (sciencenews.org)