In eight months I’m to go to college to study marine biology and I want to work with two classes of marine vertebrates (animal that have internal skeleton). The 7 main classes of vertebrates are Agnatha, Amphibia, Aves, Chondrichthyes, Mammalia, Osteichthyes and Reptilia. some of this are very abstruse but I will concentrate on working with Mammalia and Reptilia vertebrates. Mammalia vertebrates are not other than marine Mammals, these are animals that have hair or fur, blubber, and have warm blood. Mammals use lungs to breathe air, bear live young (don’t lay eggs to hatch) and produce milk through mammary glands. Common examples of marine mammals include manatees, colossal whales, dolphins, seals, sea lions, walruses and even polar bears. Reptilia vertebrates are not other than marine reptiles and their physiognomy is very different from mammals. These have very strong, dry skin and sometimes covered with scales. Reptiles are cold-blooded or ectothermic (control body temperature through external means), they use lungs to breathe and have tough skin without feathers or hair. Sea turtles and not typical animals like sea snakes, saltwater crocodile and marine iguana are some examples of marine reptiles. http://www.marinebio.org/ is a very intructive website where you can learn more about these animals :)
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