Hearing is very well developed in slender-snouted crocodiles, likely to be the primary sense organ when underwater, and is more sensitive than in other reptiles.
Little research has been conducted on communication in slender-snouted crocodiles. However, most crocodile species show common communication methods.
Hearing is very well-developed in crocodilians and is more sensitive than in other reptiles. Newly hatched young communicate with their mothers through high-pitched squeaks. Crocodilians also vocalize during aggressive interactions and while attempting to attract mates.
Touch receptors and the ears are likely to be the primary sense organs used while crocodilians are underwater.