From Openwaterpedia

noun - A caimán is an alligatorid crocodilian that inhabit Central and South America. They are relatively mid-small sized crocodilians, with the smallest being Cuvier's dwarf caiman, which grows to 1 m (3 feet) long, and the largest being the black caiman, which can grow to 5 m (15 feet) or more. Caimans are distinguished from alligators, their closest (and more widely-known) relatives, by a few defining features: a lack of a bony septum between the nostrils, ventral armor composed of overlapping bony scutes formed from two parts united by a suture, and relatively longer, more slender teeth than those that alligators possess.

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