why do Nile river crocodiles are smaller than the king crocodile
Answers
Neck scutes
The quickest and easiest way to tell them apart is to look at the scales on the back of the neck. All living crocodiles have a cluster of four or more (usually six) large scales, called nuchal scutes (a scute being an enlarged scale), on the back of their neck. Almost all living crocodiles also have a row of (usually four) scutes right behind the head, between the back of the head and the nuchal scutes, called post-occipital scutes. The one and only exception among all of the living crocodiles is the saltwater or estuarine crocodile, Crocodylus porosus, which lacks these scutes and has small scales there instead. This may sound like a pretty nitpicky tiny detail, but with a bit of experience one can recognise a saltwater crocodile in a photograph in well under a second by looking at the neck.
Snout ridges
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.
Body scales
Saltwater crocodiles have evenly spaced, small, round scales on their flanks (sides). Nile crocodiles have fewer, larger scales on the side.
Explanation:
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Explanation:
Nile crocodiles are extremely dangerous. They're large, fearless animals with very strong bites, and they can take down everything from a jackrabbit to a full-sized hippopotamus. They also get aggressive when defending their young or competing for food.