Evolution is the process of development and changes in biological organisms over a period of time with successive generations. Their genes get transformed to their younger generation but in a developed and altered way to support evolution. Evolution occurs with generation in order to cope with the variants and changes in the environment by natural selection and genetic drift. The process of evolution gives rise to biodiversity at different levels that has given way for the varied biological organization throughout the globe. The process of evolution was discovered and brought into light by Charles Darwin and Alfred Russel Wallace.