NEET BIOLOGY

Detailed explanation-1: -Frogs have vocal cords that are similar to what people have, but they also have a vocal sac that can amplify the vibrations from the vocal cords. As air moves back and forth between the lungs and the vocal sac, the vocal cords cause the air to vibrate and produce the croaking sound that we hear.

Detailed explanation-2: -We all know that frogs croak (or ribbit, chirp or hoot), but why?

Detailed explanation-3: -Male frogs croak most often, but females might also croak occasionally. Chances are, the frogs you hear singing outside your home are male. But female frogs may ribbit to mark territory or as a “yelp” of pain or surprise.