The alligator snapping turtle is a massive, prehistoric-looking turtle of rivers in the southeastern United States. It is an ambush predator famous for its fishing lure.
Interesting facts
- It is the largest freshwater turtle in North America.
- Its shell has three rows of spiky ridges, like an alligator’s back.
- It can hold its breath for up to about 50 minutes.
- Females leave the water only to lay eggs.
- In 2014, scientists described a separate species, the Suwannee alligator snapping turtle, in Florida and Georgia.
- Its bite is powerful enough to cause serious injuries.
Behaviour
Alligator snappers spend almost all their lives underwater, resting on riverbeds. They are mostly active at night.
Breeding and young
Females dig nests on riverbanks and lay about 10–50 eggs. The sex of hatchlings depends on nest temperature.
Threats and conservation
Overharvesting for meat and the pet trade, habitat loss from dams and dredging, and fishing hooks.
Where to see it
- Rivers and bayous of Louisiana (rarely seen)
- Florida Panhandle rivers
- Tennessee Aquarium, Chattanooga
- Zoos and aquariums in the southeastern US
Status source: IUCN Red List. Profile last reviewed September 2026.
