Question
Explain adaptive radiation. (Figure is not necessary)
✓
Answer
→ The process of development of different species starting from one point of a given geographical area to other geographical habitats is called adaptive radiation.
Darwin finch
→ Darwin Finch is an excellent example of this type of phenomenon.
→ Darwin saw several species of finches across the Galapagos Islands.
→ He speculated that all species had evolved on the island by themselves.
→ Along with other features of the original finches (seed eating), their beaks may have evolved for other forms that made them insectivorous and herbivorous finches.
Australian marsupials
→ Another example is the Australian marsupial.
→ Most marsupials were different from each other.
→ They evolved from a common set of ancestors, but they all evolved on the Australian island continent.
→ When more than one adaptive diffusion occurs in a geographical area (representing different habitats) it is called convergent evolution.
→ Mammals of Australia marsupials (E.g.:- the wolf and the Tasmanian wolf) show a similar evolution.
Darwin finch
→ Darwin Finch is an excellent example of this type of phenomenon.
→ Darwin saw several species of finches across the Galapagos Islands.
→ He speculated that all species had evolved on the island by themselves.
→ Along with other features of the original finches (seed eating), their beaks may have evolved for other forms that made them insectivorous and herbivorous finches.
Australian marsupials
→ Another example is the Australian marsupial.
→ Most marsupials were different from each other.
→ They evolved from a common set of ancestors, but they all evolved on the Australian island continent.
→ When more than one adaptive diffusion occurs in a geographical area (representing different habitats) it is called convergent evolution.
→ Mammals of Australia marsupials (E.g.:- the wolf and the Tasmanian wolf) show a similar evolution.
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