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For wild animals, showing teeth does not mean smiles to the camera and photographers. The only explanation for their exposing teeth is they face up with brutal situation leading to battles for food, dating mate and territory. These fightings are always very intense but it shows how nature occasionally works and indicates the reality of cruel life.
This sparrow rudely shuts the noisy partner’s beak up by his tiny talons in Sherz, Switzerland. The hen-pecked bird makes a move that was