Crocodilians have an array of senses making them a top predator in the animal kingdom.
Located below the cranial plate behind the eyes and covered by a flap of skin, crocs ears are not clearly visible unless you know where to look. Underneath the eardrums is one continuous ear canal from one side to the other. The evolution of the canal in this manner allows crocodilians to accurately pinpoint noises made by potential prey. Their hearing range is rather low compared to other species on the planet only hearing from 100 - 6000 Hz. Human beings hear an average of 20 - 20000 Hz and they don’t come close to dogs at 40 - 60000 Hz. But even with this comparatively low range of frequency detection, crocodilians are considered to have the most specialized hearing in class reptilia.