Over time, populations diverge from "summary" of The Origin of Species (Deluxe Library Binding) (Annotated) by Charles Darwin
As generations pass, slight variations inevitably arise within populations. These variations may seem insignificant at first, but over time, they can accumulate and become more pronounced. This gradual divergence is a natural consequence of the processes of inheritance and adaptation. In a given population, individuals with certain variations may be better suited to their environment than others. These individuals are more likely to survive and reproduce, passing on their advantageous traits to future generations. Meanwhile, individuals with less favorable traits may struggle to survive and reproduce, leading to a decrease in frequency or even disappearance of those traits over time. As this process continues, populations can become increasingly distinct from one another. Geographical barriers, such as mountains or bodies of water, can further isolate populations and accelerate the divergence process. Over many generations, these isolated populations may evolve into separate species with unique characteristics and adaptations. It is important to note that divergence does not necessarily mean linear progression from one form to another. Instead, populations may branch out in different directions, each adapting to its own unique environmental challenges. This branching pattern can result in the formation of diverse species that are well-suited to their respective habitats.- The concept of populations diverging over time is a fundamental principle of evolution. It underscores the dynamic and ever-changing nature of life on Earth, highlighting the ongoing process of adaptation and diversification that has shaped the incredible diversity of organisms we see today.