An alligator leapt out of the water and hit a Florida fisherman in the arm -- and he caught the entire terrifying incident on his helmetcam.
alligators are found in the southern United States and eastern China; caimans are found in Central America and South America
The factors controlling sexual differentiation in crocodilians are unknown, but heteromorphic sex chromosomes are absent from all species. Nichols and Chabreck speculated that the sex of Alligator mississippiensis was not rigidly determined at the time of hatching but could be influenced by the post-hatching environment.
prefer freshwater lakes, marshes and swamps, where they are commonly seen floating in a partially submerged, death-like stasis at the water's surface in anticipation of a fresh meal. They eat a variety of small prey, such as fish, turtles, snakes and small rodents, which they snap up and devour whole.
Now the researchers think they have identified a potential source for biodiesel that currently goes straight to landfills: alligator fat, about 15 million pounds of it every year.
While most reptiles have 3-chambered hearts, the heart of alligators, and all crocodilians, has 4 chambers, a trait shared with mammals and birds. The advantage of a 4-chambered heart is that oxygenated blood and deoxygenated blood are separated, which results in more efficient respiration needed for the high metabolism of endothermic animals.
Some adventurous souls think they can grapple with smaller 'gators without serious injury. They are quite mistaken. A smaller alligator, even 5 ft/1.5 m long, can remove a limb (Ever heard of the "death roll?"), let alone a finger, and resulting lacerations alone can keep a surgeon busy for hours.
Alligators are opportunistic feeders. Their diets include prey species that are abundant and easily accessible. Juvenile alligators eat primarily insects, amphibians, small fish, and other invertebrates. Adult alligators eat rough fish, snakes, turtles, small mammals, and birds.
During the cold, dry months (October - March), Chinese alligators hunker down in caves or burrows and brumate, rather than truly hibernate -- a way that reptiles respond to cold weather. In April, they emerge and spend much of the day basking in sunny spots. As summer begins, the animals become more nocturnal.
he Chinese alligator has a more robust head than its American counterpart, and its snout is tapered and turns up slightly at the end. The Chinese alligator’s blunt teeth are perfect for crushing shelled animals, like clams and snails.