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Evolutionary Biology in the context of Astrobiology focuses on understanding how life evolves over time, both on Earth and potentially elsewhere in the universe. It encompasses the study of genetic variation, natural selection, adaptation, and speciation, but with an emphasis on the cosmic perspective offered by Astrobiology. Researchers in this field may explore questions about the origins and early evolution of life on Earth, as well as the potential for life to arise and evolve on other planets or moons. They might also investigate how environmental factors such as radiation, temperature, and atmospheric composition could influence the evolution of extraterrestrial life forms. Overall, Evolutionary Biology in this context is about applying the principles of evolution to the search for life beyond Earth, and using our understanding of life on Earth to inform that search.