COMPLETE SPECIES PROFILE

American alligator

Alligator mississippiensis

One species, many connections.

Also known as: gator, Mississippi alligator

WHY IT MATTERS

One species, many connections.

Alligator holes can retain water during dry periods and provide refuge for many wetland organisms.

Scientific name
Alligator mississippiensis
Animal group
Vertebrate · Reptilia
Environment
Freshwater · Coastal

PUBLIC-DOMAIN VISUAL RECORDS

Two additional perspectives

Together with the primary image, these records show behavior and habitat without covering the photographs with labels.

INTERACTIVE TAXONOMY

Interactive classification

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Open the complete taxonomy glossary

DID YOU KNOW?

Curiosities that reveal how it lives

Alligator mothers guard nests and young.

The temperature of the nest influences the sex of hatchlings.

They can create “alligator holes” that hold water in dry seasons.

Only the upper teeth are usually visible when the mouth is closed.

Where it lives

Freshwater wetlands, marshes, swamps, lakes, and slow rivers of the southeastern United States.

How it lives

Fish, turtles, birds, mammals, and other available prey, changing with age and size.

Key adaptations

Armored skin, strong jaws, sensory organs around the snout, and the ability to regulate temperature behaviorally.

Its connections

Alligator holes can retain water during dry periods and provide refuge for many wetland organisms.

Pressures and protection

Wetland loss, road mortality, illegal feeding, conflict with people, and water-management changes.

What does this rank mean?

Why does this animal belong here?

Other examples or context