American Crocodile

Overview

The American crocodile is a large, widespread crocodilian native to the coastal regions of the Neotropics, ranging from South Florida and the Caribbean to Central and South America. Unlike many other crocodilians, this species is highly tolerant of saline environments, frequently inhabiting brackish estuaries, mangrove swamps, and coastal lagoons.

Distribution & habitat

This species is the most widely distributed crocodilian in the New World. While primarily found in coastal brackish waters, it also occupies freshwater rivers, inland lakes, and occasionally hypersaline environments. They require areas with both shallow and deep water, as well as land for basking and nesting.

Appearance

Adults are typically grayish to olive-green with lighter undersides and a powerful, armor-plated body featuring irregular, asymmetrical dorsal scutes. They are distinguished from the American alligator by their longer, narrower, and more tapered snout. A key diagnostic feature is the fourth tooth on the lower jaw, which remains visible when the mouth is closed. Juveniles are generally lighter in color with dark cross-bands that fade as they mature.

Biology & behavior

American crocodiles are strong swimmers that use lateral tail movements to navigate. They are ectothermic and regulate their body temperature by basking in the sun or gaping their mouths to release heat. While capable of bursts of speed on land, they spend much of their time resting in shallow water or along banks. They possess specialized glands that allow them to excrete excess salt, facilitating their survival in marine and brackish habitats.