Native to Central and South America · Introduced in Florida

Spectacled caiman

Caiman crocodilus

Data updated October 2026

Spectacled caiman floating at the surface of a marsh with its eyes and snout above water
Fig. 1 — Adult at the surface. Only the eyes, nostrils and back break the water.
Close view of a spectacled caiman's head showing the bony ridge between the eyes
Fig. 2 — The bony ridge in front of the eyes looks like the bridge of a pair of glasses.

At a glance

A small crocodilian named for the bony ridge between its eyes that looks like the bridge of a pair of glasses. It has the widest range of any caiman, from southern Mexico to northern Argentina, and pet-trade releases have left breeding populations in south Florida.

01

Identification

The spectacled caiman is olive to dark brown, sometimes marked with yellow or black. Its namesake feature is a curved bony ridge on the snout just in front of the eyes. Compared with an American alligator, its head is more triangular and its snout slightly more pointed; the alligator’s snout is broad and rounded. The American crocodile has a much narrower, pointed snout, and its fourth lower tooth shows when the mouth is closed.

  1. 01Spectacle ridge. A bony crossbar on the snout in front of the eyes.
  2. 02Triangular head. Narrower and more pointed than an alligator’s, broader than a crocodile’s.
  3. 03Olive-brown color. Dark brown or olive, with some yellow or black markings.

Commonly confused with

In Florida, any crocodilian that is not clearly an alligator or a crocodile should be photographed and reported.

02

Size

01 ft2 ft3 ft4 ft5 ft6 ft7 ft8 ft Large adult · about 8 ft (2.4 m)

This is a relatively small crocodilian. The largest reach about 8 to 9 feet (2.4–2.7 m), far shorter than big American alligators and crocodiles.

03

Range & habitat

Spectacled caiman resting at the edge of a canal lined with vegetation
Fig. 3 — In Florida, caimans live in canals, marshes and wetlands near the Everglades.

The spectacled caiman has the widest natural range of any caiman or alligator, from southern Mexico through Central America to northern Argentina. It lives in slow-moving water, in both freshwater and brackish or saltwater areas. Its range grew in the early 1900s as larger crocodilians declined.

In Florida, caiman imports for the pet trade rose after American alligators were protected in the early 1950s, and escapes or releases led to established populations by the 1980s. Breeding populations occur in localized areas of Miami-Dade and Broward counties, in canals, marshes and wetlands of the Everglades region, including next to the Biscayne Bay Coastal Wetlands and C-111 spreader canal restoration projects. Genetic work points to animals from Colombia and later from Brazil and the Guianas.

State guides: Florida

04

Diet & predators

Spectacled caimans spend much of the day still and do most of their hunting at night. They eat fish, birds, frogs, insects, small mammals and other reptiles. In Florida they share habitat with native alligators and crocodiles and may compete with them for food.

Feeds on

  • Fish
  • Birds
  • Frogs and toads
  • Small mammals and reptiles
  • Insects

Preyed on by

  • Larger crocodilians
  • Wading birds (hatchlings)
  • Large fish (hatchlings)
  • Snakes (hatchlings)
Small freshwater fish in clear water
Prey — fish.
Frog at the edge of a pond
Prey — frogs.

05

Behavior & seasons

Caimans are solitary outside the breeding season. They rest for long periods by day and become active hunters at night. They are highly adaptable: when water gets too hot and food runs short, they can go dormant (estivate) until conditions improve.

In Florida, researchers suspect caimans may move farther and faster than expected when Everglades water levels drop, and they are tracking the animals to learn how far they travel.

06

Reproduction

In the native range, mating takes place from about April to August, and larger, dominant males get the most mating chances. Females build nests within a male’s territory and lay 10 to 40 eggs. Both parents guard the nest and the young after they hatch, though the young hunt for themselves. Caimans mature at about 4 to 7 years. Where Florida caimans nest is still unknown, and biologists plan to tag females to find out.

07

Conservation

Overall the spectacled caiman is listed as Least Concern. In Florida it is an invasive nonnative species. The University of Florida, the Florida Fish and Wildlife Conservation Commission and the South Florida Water Management District run surveys and removals to contain core populations and keep them from spreading into restored parts of the Everglades. Report sightings with a photo and location to 1-888-IVE-GOT1, IveGot1.org or the IVEGOT1 app. Which reptiles are restricted?

Keep reading

Sources

Data updated October 2026 · How we build these pages