Anyone who has seen live geese surely understands what is at stake. These birds have sharp little outgrowths on their beak and tongue. By the way, other representatives of birds have exactly the same teeth, for example, penguins, whom they help to keep fish in their mouths. True, this does not apply to geese. They are not interested in fish.
So what is it? In fact, this phenomenon can only be called teeth conditionally. In fact, these are keratinized plates, not sharp and slightly rounded, moreover, they are part of the beak. It is clear that they will not be able to bite too hard, but the fact that this is a serious psychological attack is a fact.
It would seem that carnivorous living things need teeth, but even though birds are aggressive, they eat exclusively vegetarian food - cereals, grass, algae, berries. Well, they drink water naturally.
It is in this that these sharp processes help them. Thanks to them, geese pluck off plant food and filter water. Something like a whalebone. They pass water through a closed beak, separating it from various litter and plants.
Not only geese often become the protagonists of funny shots, see 17 hilarious photos about the uneasy relationship between humans and animals.