Spectacled caiman

The spectacled caiman ("Caiman crocodilus"), or the common caiman, is a medium sized crocodilian species that lives in the wetland areas of South America. This size of this species generally can get up to between . The spectacled caiman gets its name from the bony ridge between its eyes, looking like a pair of eyeglasses. As the seasons get colder, this caiman can change colors. Spectacled caimans have been known to eat insects, crustaceans, and mollusks.
In captivity.
According to ISIS, there are known to be 170 spectacled caimans in zoos.