Evidence of Evolution
- The fossil record has revealed the extinction of certain species, the beginning of new species, and the evolution of other species.
- Biogeography has revealed that organisms in similar environments around the world tend to acquire the same adaptations for their survival. There may be no rabbits in Australia, but the Australian wallaby resembles rabbits in many ways.
- Embryology has revealed that there are similar stages in development among related species. Most notable is the fact that gill slits and tails are found in fish, chicken, pig, and human embryos.
- Comparative anatomy also supports the theory of evolution. Homologous structures in the forelimbs of various vertebrates support the concept of a common ancestor. Analogous structures in organisms that live in similar environments (like fins whales and fish) support the concept that the environment affects the development of organisms.
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