KarlWilliams

Possibly.... or, and hear me out here, the sharks are mutants that have regenerative effects on flesh kind of like Wolverines healing factor. This helped regrow the tissue and also is why the sharks can survive out of their natural habitat.

OMMISION! Id also like to point out that Tera Reid does little to pretend her hand has been amputated, she can actually be seen grasping the woman shes rescuing as they run through the hospital.

OMMISION: Nobody is going to mention when Fin slices a shark absolutely PERFECTLY in half?

CORRECTION! The ring and hand at the end WAS DEFINITELY Tara Reids. Ian is looking for a weapon when he takes it out of the sharks mouth, and Taras hand was still clutching the pistol she was firing at the shark when it was bitten off. He also says "Won't be needing this again." Not "She won't be needing this again." The prop arms length is just dum dum prop work, the phrasing is just poor syntax.