
Reptile
American Alligator
The armored survivor of the southern swamps
Trusted wildlife guides
Friday, 25 September 2026Animals
All AnimalsAnimals A–ZCollectionsSharksBig CatsBearsSnakesFrogs and ToadsTurtles and TortoisesWhales and DolphinsPrimatesLearn biologyEducator packsHabitats & biomesRegionsBrowse by Class, Diet & HabitatIdentify WildlifeCollective NounsBaby AnimalsAnimal of the DayCrocodilia is a taxonomic order in the class Reptilia. Global Animal Guide profiles 5 of its members: American Alligator, Saltwater Crocodile, Spectacled Caiman and 2 more. The table compares them using the figures on each profile.
| Animal | Weight | Length | Top speed | Lifespan | Native to | Status |
|---|---|---|---|---|---|---|
| American Alligator Alligator mississippiensis | 360 kg | 4 m | 32 km/h | 50 yrs | North America | Least Concern |
| Saltwater Crocodile Crocodylus porosus | 1,000 kg | 5.5 m | 29 km/h | 70 yrs | Asia, Oceania | Least Concern |
| Spectacled Caiman Caiman crocodilus | 40 kg | 2 m | 30 km/h | 40 yrs | South America, North America | Least Concern |
| Nile Crocodile Crocodylus niloticus | 410 kg | 5 m | 30 km/h | 80 yrs | Africa | Least Concern |
| Gharial Gavialis gangeticus | 250 kg | 5 m | 25 km/h | 55 yrs | Asia | Critically Endangered |
Figures are typical adult maxima from each profile; follow a profile for ranges, sources and context.

Reptile
The armored survivor of the southern swamps

Reptile
The largest living reptile and most powerful bite on Earth

Reptile
The common crocodilian of the Americas

Reptile
Africa's largest and most formidable predator of the rivers

Reptile
The fish-eating crocodilian with a long, narrow snout