The Significance of Evolutionary Theory

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September 28 , 2007

The Significance of Evolutionary Theory

There are several fundamental questions that arise in discussing the biological history of man as well as life itself . Where did we come from ? Are we related in some way to other life forms ? How have we changed over time ? Will we and other organisms continue to change Several theories have been advanced to provide some answers to these questions . Charles Darwin 's theories on natural selection serve as a foundation for the scientific study of evolution

. In essence , the theory is that all life on earth has a common origin , or ancestor . Simple organisms gradually became larger and more complex and adapted to various environments . Over millions of years of evolution resulted in creatures as different as alligators and humans . The theory that those two organisms are somehow related through a common ancestor may seem absurd to some , and other theories , including creationism ' and intelligent design ' reject the theory of evolution and base their theories on the existence of a supreme being

It is extremely important to study and grasp evolution theory through the scientific method . This provides the basis for understanding our environment . The complex relationships of life forms in various environments as well as the changes or mutation of organisms , must be studied for a variety of reasons and purposes . The understanding of various infectious diseases and how they mutate to become harmless or resistant to drugs is critical for our health . Controversy has erupted over recent advances in genetic engineering based on knowledge of evolution theory . Better strains of crops and animals have increased food supplies . Examination of recent discoveries of new life forms in caves and ocean depths aids in understanding how life forms can evolve in extreme environments , including lifeless ' planets . Understanding evolution is vital in understanding the migration of humans centuries ago and tracing their common origins

It is difficult , if not impossible , to study biology , anthropology , and paleontology without an understanding of evolution . It is the basis for a huge body of knowledge that can protect us from naturally occurring environmental dangers while warning us of the dangers of injuring and destroying our environment and other life forms . It has proven to be fundamental in the protection of endangered species as well as reintroducing protected species to their environment . Ultimately knowledge of ourselves and our world cannot grow and evolve without fundamental knowledge of evolution

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