Question: what is the difference between a saltwater crocodile and a nile crocodile?
Answer: Saltwater crocodiles have a pair of ridges going part way down the snout, starting in front of the eyes. Nile crocodiles have a smoother snout. Saltwater crocodiles have evenly spaced, small, round scales on their flanks (sides). Nile crocodiles have fewer, larger scales on the side.