A total of 18 extant species are regarded. Further genetic research is required to the affirmation of proposed species beneath the genus Osteolaemus. Species identify Vocalizations can include things like bellowing, growling, hissing, and grunting but scientists a short while ago rigged up croc territory and picked up booming sounds https://crocodiles95702.blogdigy.com/indicators-on-crocodiles-you-should-know-51957465