Find out what an American alligator has in common with a frilled lizard. Discover what sets an American alligator apart from an eastern coral snake. Readers will compare and contrast key traits of American alligators—their appearance, behavior, habitat, and life cycle—to similar and different reptiles. Charts and sidebars support key ideas and provide details. Through gathering information about similarities and differences, readers will make connections and draw conclusions about what makes this animal a reptile and how reptiles are alike and different from each other.
American alligators live throughout the southeastern United States, slowly swimming through rivers and swamps while looking for their next meal. They snatch up prey in a flash! With few predators once fully grown, American alligators can live to be 50 years old. Learn more about these heavily armored reptiles and their growth from hatchlings to adults in this title for beginning and struggling readers.
Release on 1979 | by Charles A. Ross,Charles D. Roberts,U.S. Fish and Wildlife Service
Author: Charles A. Ross,Charles D. Roberts,U.S. Fish and Wildlife Service
Category: American alligator
Examination of scalation of American alligators (Alligator mississippiensis) from populations in the eastern and western parts of the species range revealed several scale characteristics that varied between populations and significant variation in the number of transverse ventral rows, number of anterior nuchal scales, number of scales in the anterior dorsal scale row, number of scales in the posterior transverse scale rows, and occurrence of caudal irregularity. Ventral ossification occurs in alligators longer than 165 cm from both the eastern and western parts of the species range. Because of a lack of material from the central part of the alligator's range (Alabama and Mississippi), the nature of this variation cannot be determined.
Readers are introduced the habitat and lifestyle of the American Alligator and learn how the American Alligator is making a comeback from near extinction. Find out how people in the southeastern United States are learning to live with these amazing creatures.
In a shallow pond, an enormous alligator is waiting, its nostrils breaking the surface of the dark waters. Suddenly, a duck lands on the pond. The alligator's huge, gaping jaws emerge from the water and snap shut! The duck quickly flaps its wings and escapes. The alligator sinks below the water again. The swamp is home to lots of other prey, and the stealthy alligator will soon catch a tasty meal. Filled with information perfectly suited to the abilities and interests of its primary-grade audience, this colorful, fact-filled book gives readers a chance not only to learn all about American alligators and their swamp habitat, but also to develop powers of observation and critical thinking. Built-in activities, such as using a measuring tape to see how long alligators grow and guessing how a mother alligator takes care of her young, give readers a chance to gain insights beyond the facts and figures.