Evidence from many different places and habitats around the world strengthens Darwin's theory of evolution by providing a broader and more diverse range of data that can be used to support the theory. When evidence from multiple habitats and biomes is considered, it is possible to see patterns and similarities in the way species have evolved and adapted to their environments. For example, the presence of similar adaptations to different environmental conditions in organisms from different parts of the world can help confirm the role of natural selection in shaping the evolution of species.
Furthermore, by examining the distribution of species across the globe, it is possible to see patterns that support the idea of common ancestry, which is a central tenet of Darwin's theory of evolution. For example, the close relationship between species found in similar habitats, such as marsupials in Australia and South America, suggests that they may have shared a common ancestor at some point in the past.
Finally, the availability of multiple sources of evidence from different parts of the world also allows scientists to test and refine the predictions made by Darwin's theory, thereby increasing the overall reliability and robustness of the theory. In this way, evidence from many habitats and biomes can help provide a comprehensive and well-supported explanation for the diversity of life on Earth.