Most mammalian carnivores have a sort of mix. They have the piercing canines, then their molars act like scissors to slice off hunks of meat. Herbivore and human molars are more for crushing.

It’s called noodling. The fisherman doesn’t hold worms in his hand. He gets in the river, reaches up under the undercut bank to feel if there is a catfish (or turtle) there. If there is, he just grabs it by the jaw and yanks it out (if catfish). Turtles require a bit more finesse. If you feel smooth shell, don’t grab. That’s the front and it will grab you back with a mouth made of basically scissor blades. It the shell is jagged, that’s the back end. Feel for a tail and yank it out.