Mysterious things are turned to obvious things efficiently using science. The study of evolution works to convert much that were mysterious in to things, every evolutionary biologist now finds it obvious. The collection of data, the composition of many possible interpretations and rejection of quite few of them and going through controversies. The theme of biological evolution is that all life on earth shares a common ancestor. Evolution simply means modification of descents. Evolution helps us to understand the history of life. The central idea is that all living things evolve from common ancestor. The person identified with the discovery of evolution is Charles Darwin. Particularly, evolutionary biology is based on and stimulated by the accurate observation of nature.
The change in genotype and phenotype of living things with respect to time helps an individual to be well suited to environment. With modification, the common ancestor gave rise to the fantastic diversity that we can get in the fossil records and around us today. Evolution says that all the living things in the earth are related to each other. For example, Human and trees, whales and birds must be related to each other. Reproduction falls under one of the unique character of living things. Replication of DNA is a very important factor in reproduction that can be passed on. This is very accurate process and sometimes rare mistakes occurs known as mutation. Mutation might not play any role in phenotype of organism but it may be viable in many cases. Very few cases are found to survive after mutational change. So, in extreme cases mutation can act as the decision maker for the life and death of an organism. Giraffe for instance have long necks but they might not have it before. At some point of time mutation could have caused the giraffe to have long neck and they survived but the giraffe with shorter neck died due to scarce of food in the ground level or grasses. Hence by this process giraffes with longer necks might have evolved.
The change in genotype and phenotype of living things with respect to time helps an individual to be well suited to environment. With modification, the common ancestor gave rise to the fantastic diversity that we can get in the fossil records and around us today. Evolution says that all the living things in the earth are related to each other. For example, Human and trees, whales and birds must be related to each other. Reproduction falls under one of the unique character of living things. Replication of DNA is a very important factor in reproduction that can be passed on. This is very accurate process and sometimes rare mistakes occurs known as mutation. Mutation might not play any role in phenotype of organism but it may be viable in many cases. Very few cases are found to survive after mutational change. So, in extreme cases mutation can act as the decision maker for the life and death of an organism. Giraffe for instance have long necks but they might not have it before. At some point of time mutation could have caused the giraffe to have long neck and they survived but the giraffe with shorter neck died due to scarce of food in the ground level or grasses. Hence by this process giraffes with longer necks might have evolved.
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