05 Origin and Evolution of life - part 10 - Adaptive Radiation

05 Origin and Evolution of life - part 10 - Adaptive Radiation


Adaptive Radiation : 

  • The process of evolution which results in transformation of original species to many different varieties, is called, adaptive radiation. 
  • Darwin's Finches is one of the best example of adaptive radiation.
  •  During his visit to Galpagos Islands. Charls Darwin also noticed a variety of small birds. These birds are called Darwin's finches.
  • Darwin concluded that the American main land species of bird was the original one from which they migrated to the different islands of Galpagos. 
  • They adapted to the different environmental conditions of these islands. 
  • From original seed eating features many other forms with altered beaks evolved into insectivorous features. 
  • Another example of adaptive radiation is Australian Marsupials. In Australia, there are many marsupial mammals who evolved from common ancestor.

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