There's a new federal law that bans bringing bighead carp into the U.S. The bighead carp is among the Asian carp species that threatens the ecosystem of the Great Lakes.
...adds bighead carp to a list of wildlife that cannot be imported or taken across state lines. The only exceptions would be for scientific, medical or educational purposes and would require a permit. Bighead and silver carp have infested waterways in the Chicago area. Authorities are trying to prevent them from getting into the Great Lakes, where they would compete with native fish for food.