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Biogeography: Evidence for Evolution [/FONT]
Biogeography as Evidence of Evolution
Evidence for Evolution
This thread is to debate/discuss the concept of biogeography as evidence for evolution. For those who are not familiar with the concept biogeography refers to the geographical distribution of flora and fauna. This includes both living and extinct species of plants and animals found in the fossil record (paleo-biogeography).
Perhaps the most obvious example of this is the marsupial life found in Australia. We find on the Australian continent (either living or recently extinct) marsupial versions of placental mammals that are found in other places. There are (or in some cases were) marsupial mice, marsupial wolves, marsupial cats and even marsupial flying squirrels. And of course there are also different species of kangaroos that are unique to that continent.
Now the question is why are all these marsupial species found in Australia and not in other places in the world? And why are there marsupial versions of placental mammals? It is not as though placental mammals would not thrive in Australia, many placental mammals have been introduced in recent years have thrived there (much to the annoyance of Australians). So why?
The theory of evolution provides an answer. We find so many marsupials in Australia because they evolved from a common marsupial ancestor which migrated there from North America. We can predict were we will find fossils of marsupials, which geological layer we will find them (in a sense predict when we will find them). We can trace both their evolution and their migration through geological time.
What would be the alternative hypothesis? Did the creator get over to Australia and then forget how to make a mouse? Or were there perhaps two different creators.
Evolution provides similar explanations for the biogeographical distribution of new world monkeys and old world monkeys. Darwin himself made the prediction that we would find ancestors of the hominid line in Africa. We find fossil evidence exactly were we expect to find it according to the theory of evolution. How do creationists explain this?
Biogeography: Evidence for Evolution [/FONT]
Biogeography as Evidence of Evolution
Evidence for Evolution
This thread is to debate/discuss the concept of biogeography as evidence for evolution. For those who are not familiar with the concept biogeography refers to the geographical distribution of flora and fauna. This includes both living and extinct species of plants and animals found in the fossil record (paleo-biogeography).
Perhaps the most obvious example of this is the marsupial life found in Australia. We find on the Australian continent (either living or recently extinct) marsupial versions of placental mammals that are found in other places. There are (or in some cases were) marsupial mice, marsupial wolves, marsupial cats and even marsupial flying squirrels. And of course there are also different species of kangaroos that are unique to that continent.
Now the question is why are all these marsupial species found in Australia and not in other places in the world? And why are there marsupial versions of placental mammals? It is not as though placental mammals would not thrive in Australia, many placental mammals have been introduced in recent years have thrived there (much to the annoyance of Australians). So why?
The theory of evolution provides an answer. We find so many marsupials in Australia because they evolved from a common marsupial ancestor which migrated there from North America. We can predict were we will find fossils of marsupials, which geological layer we will find them (in a sense predict when we will find them). We can trace both their evolution and their migration through geological time.
What would be the alternative hypothesis? Did the creator get over to Australia and then forget how to make a mouse? Or were there perhaps two different creators.
Evolution provides similar explanations for the biogeographical distribution of new world monkeys and old world monkeys. Darwin himself made the prediction that we would find ancestors of the hominid line in Africa. We find fossil evidence exactly were we expect to find it according to the theory of evolution. How do creationists explain this?