Geographical distribution of species from "summary" of On the Origin of Species By Means of Natural Selection by Charles Darwin
The geographical distribution of species is a topic of great interest to naturalists, as it can provide valuable insights into the processes of evolution. When we consider the distribution of species across different regions of the world, we often find patterns that are not easily explained by random dispersal or by creationist beliefs. Instead, these patterns suggest that species have evolved in specific geographical contexts, adapting to the unique environmental conditions of their respective habitats. One striking example of geographical distribution is the presence of similar species in distant regions that are separated by barriers such as oceans or mountain ranges. For instance, the distribution of certain species of plants and animals in South America and Africa can be explained by the breakup of the ancient supercontinent Gondwana, which once connected these regions. The similarities between species in these distant locations suggest a common...
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