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प्रश्न
How did Darwin explain adaptive radiation ? Give another example exhibiting adaptive radiation.
उत्तर
During his exploration of the Galapagos Islands, Darwin noticed that there were many varieties of finches in the same island. They varied from normal seed-eating ones to those that ate insects. This process of evolution, starting from a single point and radiating in different directions, is called adaptive radiation. Another example of adaptive radiation is the evolution of the Australian marsupials from a single ancestor. Placental mammals also exhibit similarities to their corresponding marsupials.
Examples: Placental wolf and the Tasmanian wolf
When more than one adaptive radiation occurs in an isolated geographical area, the phenomenon is called convergent evolution.
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संबंधित प्रश्न
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Long answer question.
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