Why do frogs croak?
Frogs produce noise by inflating their vocal sacs with air and then forcing the air out through their mouths and noses. Each frog species has a characteristic call that differs from those of all other species.
Frogs croak to attract mates, defend territories, dissuade predators and identify themselves. The most common calls are those used to defend territory and attract mates during the breeding season. While male frogs are much more vocal than females, the females of some species are capable of producing sounds as well.In addition to croaks, frogs emit loud screams, called alarm calls, when they are grasped by a predator. These calls may startle the attacking predator, allowing the frog to escape.
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