The difference between a bird's beak and a bird's beak is the difference in appearance and function.

1, with different external shapes, convex mouth refers to the mouth floating on the water or the ground, such as the mouth of whales, crocodiles and other animals. A beak is a curved shape of a beak.

2, different functions, the shape of the convex mouth is usually used for predation or defense. For example, sharks' sharp teeth can help them catch prey, while crocodiles' teeth and powerful mouths can defend against enemies. Beaks are the main tools of birds, which are used for hunting, drinking water and nesting.