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.