Part one of term paper
weighs as much as 20 elephants but lives beneath the sea. The blue is Earth's largest animal. Larger than the largest of ancient dinosaurs, blue s can grow to be more than 100 feet (30 meters) long and weigh nearly 150 tons. Not all s are so large. The much smaller pilot grows to about 28 feet (8.5 meters) in length. And dolphins, which be ...

Part two of term paper
... are two basic types of living cetaceans: baleen, or bone, s of the scientific suborder Mysticeti; and toothed s of the suborder Odontoceti. s live in all of the open seas of the world, though some occasionally enter coastal waters. Some species, such as the white , or beluga, may travel upstream in large rivers. Some species migrate with the seasons; others remain year-round in the same habitats, where they find their preferred food. The present-day distribution and abundance of some species ha ...