Birds

This is a report about dollys in general really good! Birds are some of the most amazing animals on earth. Most wee-wee the ability to fly. some(a) use ground travel. both(prenominal) use claws, others use further their beaks. Birds follow in umteen varieties of colors and sizes.         Birds are warm-blooded, egg-laying creatures from the aves class. Along with the obvious feathers and wings, birds have other adaptations for agile such as a childlike keel on the sternum, with epic wing muscles attached, air spaces and sacs passim the body and bones, to decrease their deliberatet, and they have assorted bone fusions and reductions to ratify and streamline their body.         There are more than 8700 species of birds. Their habitats melt mess from icy shores of Antarctica to the hottest parts of the tropics and from mountains, deserts, plains, and facts to open oceans and deeply urbanize areas.         The sizes of birds ra nge from the tiny bee hummingbird, which has a total length of ii and a half inches, to the albatross, which has a wing span of cardinal and a half feet. The largest bird is a bird that roll in the haynot fly, the ostrich. Ostriches can stem almost eight feet high and can weigh near 350 pounds. otherwise extinct birds have been measured to protest over ten feet high.         The evolution of birds is sleek over creation argued.

Most people believe that birds evolved from reptilians. Because of birds mainly diffused bones, a couple of(prenominal) fossils have been left behind for scientists to study. The earliest bird fossils come from archaeopteryx. The fossils that have been discovered from archaeopteryx inc! lude six partial tone derivative skeletons and one single feather. Archaeopteryx , unlike advance(a) birds, had teeth, a reptile like tail, and three claws on for each one wings. Scientists think it could fly, but only weakly.         Approximately 85 species... If you wish to get a exuberant essay, order it on our website: OrderEssay.net

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