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We act like animals we eat like animals and we are animals The many theories of evolution such as Darwins theory of evolution prove to us that we choose to believe that we are not animals when we really are Evolution is the sequencial process of change over periods of time which shapes and establishes the formation of modern man In referring to evolution the word means various changes Evolution refers to the fabrication and development of life on earth Organic evolution is the concept that all living beings evolved from simple organisms and have changed throughout the periods of time to create many and various types of species Organic evolution is better known as the theory of evolution There are three main theories of evolution which are the early theories proposed by Comte de Buffon Baron Cuvier and Lamarck the synthetic theory and the Darwin theory In the 1700s French naturalists Comte de Buffon and Baron Cuvier concluded with the studies of fossils and comparative anatomy that life on earth had endured many changes through a long period of time In the early 1800s another French naturalist named Lamark proposed the first complete theory of evolution He observed through is observations depending on the extent to which the use of the structure that an animals body structure is able to change during its life span He also noted that organs and muscles which were used often tended to become larger and stronger On the contrary the organs and muscles which were used seldom tended to become smaller and diminish With these observations Lamarck concluded that these characteristics were hereditary Proposed during two decades the 1930s and 1940s the synthetic theory involved a group of scientists The group of scientists included two American biologists Russian Theodosius and German Ernst Mayr and the British geneticist and statistician Ronald A Fisher Together they proposed the synthetic theory which combined Darwins theory of
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