Division and Classification Essay (Reptiles) - 1367 Words.

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Dinosaur evolution after the Triassic follows changes in vegetation and the location of continents. In the Late Triassic and Early Jurassic, the continents were connected as the single landmass Pangaea, and there was a worldwide dinosaur fauna mostly composed of coelophysoid carnivores and early sauropodomorph herbivores.

Reptiles, the class of reptilian, are an evolutionary grade of eukarya, including today’s turtles, crocodilians, snakes, lizards, as well as many other extinct groups. Reptiles have existed on this planet for millions of years and have undergone countless mutations. One area of interest is how have these creatures defended themselves as their.

Crocodiles range in size from the African dwarf crocodile, which grows to over 6 feet, to the Saltwater crocodile, which grows to over 20 feet in length. Crocodiles have large, broad bodies with short legs and long, muscular tails. They have thick, leathery skin with bony, plate-shaped scales. All crocodile teeth are pointed, cone shaped and.

In: Conservation and Utilization of the Nile Crocodile in Southern Africa. Handbook on Crocodile Farming. Crocodilian Study Group of South Africa, Pretoria. pp. 11-21 Cott, HB (1961). Scientific results of an inquiry into the ecology and economic status of the Nile crocodile (Crocodylus niloticus) in Uganda and Northern Rhodesia. Trans. Zool. Soc.

Four reptile groups have species found in aquatic habitats: turtles, lizards, snakes, and crocodilians. Although most must return to land to nest, many have adapted to spend the majority of their lives in water. Turtles. Turtles are the oldest living reptiles, having evolved before the dinosaurs, more than 200 million years ago. Of the more.

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ANATOMY Alligators are large, semi-aquatic carnivorous reptiles with four legs and a huge tail. The tail is half the animal's length; it helps propel the alligator through the water, is used to make pools of water during the dry seasons (gator holes), is used as a weapon, and stores fat that the alligator will use for nourishment during the winter.

Red headed agama is a type of lizard belonging to the Agamidae family, occurring in sub-Saharan Africa. The male lizard is very much territorial and is known to become agitated when confronting other males; however, the animal prefers to live in groups with hierarchy consisting of a dominant male with submissive young males and females.

Many people are unaware that there's a difference between alligators and crocodiles and use both terms interchangeably to describe any large water-dwelling lizard with big teeth. What they don't realize is that, despite some similarities, the two reptiles don't look or behave the same. They also belong to different biological families.

Introduction: Tropical Diversity, Classification, Evolution. I begin this essay with a short statement honoring tropical biology and tropical biologists. Then I summarize Darwin’s theory on evolution. At the end of the essay I include four special-topic sections on evolution. These are hard, and they are not directly relevant to our.

The prey species is markedly different with the change of age, size and habitat. Diet of young crocodilians includes insects, small fishes, snails, crabs, shrimps, tadpoles and frogs. Food of sub adult and adult crocodilians consists of a bulk of fish (about 70%), crabs, terrapins and turtles, birds and small and large mammals.