This Cute Sea Snail Can Swallow a Fish Three Times Its Size and Kill HumansJesus Diaz1/12/12 8:38am142EditPromoteDismissUndismissHideGo to permalink Watch this nice snail. It slowly moves across the ocean floor—lah-di-lah-di-lah!—until it finds a sleeping fish three times its size. Does it say hello, Mr. Fish, sorry to wake you up? No. It just opens its giant mouth and swallows it.