Explain the adaptive radiation with the help of a suitable example?
class 12th CBSE Biology sample paper
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The process of evolution that starts from a single point and radiates in different directions is called adaptive radiation.
Example: Australian marsupials have evolved from a single ancestor and placental mammals exhibit similarities with their corresponding marsupials such as placental wolves and Tasmanian wolves.
Example: Australian marsupials have evolved from a single ancestor and placental mammals exhibit similarities with their corresponding marsupials such as placental wolves and Tasmanian wolves.
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Adaptive radiations is the process of evolution of different species in a given geographical area starting from a point and radiating to other areas of habitats is called adaptive radiation.
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Darwin went to galapogas island and observed that they were many varieties of finches in the same island.
All the varieties evolved on island itself.
Darwin reasoned that after originating from a common ancestor seed eating stock, the finches must have radiated to different geographical areas and undergoes adaptive changes in their beaks enabling some to become insectivorous.
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