I am trying, really I am trying to think of a way that the ferret can even come remotely close to even try and nip at the shark. Now if it was up against a whale, and capable of holding its breath it might just might stand a chance against it, (blocking its blowhole), but against the shark? Nah, poor little guy is nothing but shark bait. Maybe the shark will choke on a bone or something, or get the ferret stuck in his throat, but either way the poor ferret dies. Victor- - Shark.