Evolutionary Biology

Evolutionary Biology is the subfield of Biology that studies the evolutionary processes such as natural selection, common descent, and speciation that produced the diversity of life on Earth. In the 1930s, the discipline of evolutionary biology emerged through what Julian Huxley called the modern synthesis of understanding, from previously unrelated fields of biological research, such as genetics and ecology, systematics, and paleontology.

The investigational range of current research has widened to encompass the genetic architecture of adaptation, molecular evolution, and the different forces that contribute to evolution, such as sexual selection, genetic drift, and biogeography. The newer field of evolutionary developmental biology (“evo-devo”) investigates how embryogenesis is controlled, thus yielding a wider synthesis that integrates developmental biology with the fields of study covered by the earlier evolutionary synthesis.

wikipedia/en/Evolutionary%20biology

Evolutionary biology is the study of how life on Earth has changed over time, focusing on the processes that lead to the diversity of organisms and their adaptations to different environments. It explores the mechanisms of evolution, such as natural selection and genetic drift, and how these processes shape the history of life.

• Evolutionary Processes: Evolutionary biology investigates the mechanisms driving evolutionary change, including:
  • Natural Selection: Differential survival and reproduction based on heritable traits.
  • Genetic Drift: Random fluctuations in gene frequencies within a population.
  • Mutation: Changes in DNA sequences that introduce new genetic variation.
  • Gene Flow: Movement of genes between populations.
  • Speciation: The process by which new species arise.
• Common Descent: The idea that all living organisms share a common ancestor.
• Adaptation: The process by which organisms become better suited to their environment through evolutionary change.
• History of Life: Evolutionary biology examines the major events and trends in the history of life on Earth, from the earliest forms of life to the present day.