Crocodiles produce a variety of vocalizations for communication, including deep bellows for territorial defense, low grunts for group communication, and aggressive hisses. Their gular sac, larynx, and vocal cords work together to produce sound, which can be modulated by the syrinx. These vocalizations serve various functions, including establishing home ranges, attracting mates, providing parental care, and alerting conspecifics to danger.
