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  2. Learn about the two species of alligators, their evolution, appearance, and adaptations. Discover how they hunt, communicate, reproduce, and survive in their habitats.

    • Freshwater, swamps, marshes, lakes, rivers
    • USA and China
    • 35 to 50 years
    • Alligators Are Ancient. Alligators, along with other crocodilians, have undergone very little evolutionary change since the time of the dinosaurs. American alligators appeared about 84 million years ago, and their ancestors evolved more than 200 million years ago.
    • They Can't Survive in Salt Water. Unlike crocodiles, alligators don't have the glands to excrete salt from their bodies, so they can't swim in saltwater habitats like mangrove swamps.
    • They Can Weigh More Than 1,000 Pounds. The largest alligator ever measured was 15 feet, nine inches long and weighed in at 1,011.5 pounds. This gator was caught in Mill Creek, a tributary of a river in Alabama.
    • Their Sex Is Determined by Temperature. One of the weirder facts about alligators is that the sex of them is determined not by DNA but, rather, by climate.
  3. Sep 18, 2024 · Learn about alligators, two species of crocodilians with a broad U-shaped snout and an overbite. Find out how they differ from true crocodiles, where they live, what they eat, and how they breed.

    • The Editors of Encyclopaedia Britannica
  4. Sep 14, 2023 · Learn about the origin, evolution, habitat, behavior, and conservation of alligators, the ancient crocodilian reptiles. Discover the differences between the American and Chinese alligators, and how they interact with humans.

    • (96)
    • Alligators can get quite large. Like crocodiles, alligators continue to grow throughout their life. As a result, old males can get quite large – they can often reach at least 14 or 15 feet (up to 4.5 meters) in length, which is even larger than some crocodile species (but not all of them, the biggest reptiles are still crocodiles).
    • Alligators can use basic tools. An alligator’s brain weighs only about 8 or 9 grams, and it has the average size of a walnut, but that doesn’t mean they are stupid.
    • The oldest alligator is Muja, an American alligator at Belgrade Zoo in Serbia. In 1937, an adult specimen was brought to the Belgrade Zoo in Serbia from Germany.
    • The origin of the name “Alligator” The name “alligator” is probably an anglicized form of el lagarto, the Spanish term for “the lizard”, which early Spanish explorers and settlers in Florida called the alligator.
  5. en.wikipedia.org › wiki › AlligatorAlligator - Wikipedia

    Learn about alligators, large reptiles in the genus Alligator of the family Alligatoridae. Find out their evolution, phylogeny, extant and extinct species, appearance, behavior, diet, reproduction, anatomy and human uses.

  6. Oct 23, 2014 · Learn about the two species of alligators, their size, habitat, behavior, diet, reproduction and conservation status. Find out how to distinguish them from crocodiles and how they regulate their temperature.