Caiman
Found in marshes, swamps and rivers in Central and South America, caimans are members of the alligator family that, depending on the species, can range from 5 to 16 feet in length.
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Crocodilia
Family: Alligatoridae
Subfamily: Caimaninae
Genus: Caiman, Melanosuchus, Paleosuchus
Species: 6 species – Spectacled Caiman (C. crocodilus), Yacare Caiman (C. yacare), Broad-snouted Caiman (C. latriostris), Black Caiman (M. niger), Cuvier’s Dwarf Caiman (P. palpebrosus), Smooth-fronted Caiman (P.trigonatus)
Common Names: Caiman
Despite being more closely related to alligators, caiman behavior is more similar to crocodiles in their movements and agility.
Like other crocodilians, they are among the top predators in their environment. Their diet largely consists of fish. They may also hunt small mammals, birds and reptiles.
Caimans themselves may be preyed upon by anacondas, jaguars, and larger crocodiles.
They are cold-blooded, meaning they must absorb sunlight in order to gain their energy. They spend their time either basking in the sun, or in the water where they hunt.
Caiman mothers build large nests. They may be over five feet in diameter. They can lay as many as 50 eggs in a clutch. After they hatch (in about six weeks), the mother will take the baby caimans to a shallow pool where they will learn from her how to swim and hunt for small animals.
Caimans, as members of the family Alligatoridae, are similar to alligators in appearance. Their bodies feature a standard crocodilian form, with bony scutes along their back, a long powerful tail to aid in swimming, and a long snout full of sharp teeth.
Like alligators, caimans usually have broad snouts that look U-shaped from above, as opposed to crocodile snouts that are typically more V-shaped. Their teeth are sharper than those of alligators, and their hides are tougher.
Most caiman species, on average, are smaller than other crocodilians, with the smallest being Cuvier’s dwarf caiman, that measures just five feet in length when fully grown. Most species average around eight feet. The largest species, the black caiman, can reach lengths of up to 16 feet, which rivals the American alligator in size.
Though most caiman species currently alive are relatively small for crocodilians, prehistoric examples from the caiman subfamily could grow quite large. The extinct caiman Purussaurus was one of the largest crocodilians to ever live, growing to nearly 40 feet long.
The word “caiman” is believed to come from “acayouman”, a word from the Carib language spoken by the indigenous Kalino people.
All six species of caiman are currently listed as Least Concern.
Humans hunt caimans for their meat, or for their leather. In the 1970s, the black caiman was considered endangered due to the desirability of its leather, though demand has lessened since and allowed the population to recover. However, habitat destruction is still a major threat to caimans.