A tag SNP is a representative single-nucleotide polymorphism (SNP's) in a region of the genome with high linkage disequilibrium (the non-random association of alleles at two or more loci).
Although the caimans have much narrower bodies, they are most closely related to alligators and crocodiles. Caimans are found in a variety of habitats throughout Central and South America from marshes and swamps to mangrove rivers and lakes.he average length for most of the other caiman species if about 2.5 meters long. The caiman is a carnivorous predators and, like the alligator and the crocodile, the caiman has a diet that consists of a great deal of fish.
While there is essentially only one species of alligator (the American Alligator or  alligator mississippiensis), there are a dozen species of crocodiles, in varied shapes and sizes found all over the world. By far the most common is the Brown Caiman from Central and South America.