A Picture of Alligator mississippiensis

Alligator Facts

  • Name: Alligator
  • Type Species: Alligator mississippiensis
  • Lifespan: Up to 80 years
  • Diet: Meat (carnivorous)
  • Range: Southeastern United States
  • Length: 11 feet on average (male)
  • Weight: 790 pounds on average (male)

16 Alligator Facts for Kids

  1. Alligators are large reptiles that are a member of the Alligatoridae family.
  2. Their scientific type species name is Alligator mississippiensis.
  3. There are two living species of alligators, one is A. mississippiensis and the other is A. sinensis.
  4. Male alligators can reach an average length of 11 feet.
  5. Male alligators can reach an average weight of 790 pounds.
  6. Female alligators can reach an average length of 8 feet.
  7. Female alligators can reach an average weight of 575 pounds.
  8. There is no definitive lifespan for alligators, 50 years is common in the wild and the oldest living alligator in captivity is over 80 years old.
  9. It’s estimated over 5 million alligators are living in the southeastern United States, with more than 20% of the total population living in the U.S. State of Florida.
  10. Alligators are apex predators. If they reach adulthood size there isn’t anything that can hunt them, expect other Alligator’s and humans.
  11. Only 1 in 5 alligator hatchings will make it to adulthood size.
  12. Alligators are carnivores and will eat invertebrates, aquatic animals, other reptiles, birds and all sizes of mammals.
  13. It’s common to find alligators in lakes, slow-moving rivers, ponds and swamps.
  14. Alligators constantly replace their teeth. They’ll have 70 to 80 teeth in their jaw at any given time and go through 2,000+ teeth in a lifetime.
  15. The sex of an Alligator is determined by the temperature at which the eggs develop. Temperatures over 93 degrees Fahrenheit produce males, temperatures at or under 86 degrees Fahrenheit produce females. Anything in-between can product both males and females.
  16. The name “Alligator” means “the lizard” and comes from the Spanish word “el lagarto”.

Additional Resources on Alligators