Assertion : Darwin's finches show a variety of beaks suited for eating large seeds, flying insects and cactus seeds.
Reason : Ancestral seed-eating stock of Darwin's finches radiated out from South American mainland to different geographical areas of the Galapagos Islands, where they found competitor-free new habitats.
The diversity in the type of beaks of finches adapted of different feeding habits on the Galapages islands as observed by Darwin, provides evidence for
Describe one example of adaptive radiation.
Process of evolution of different species in a given geographical area starting from a point and literally radiating to other areas of geography (habitats) is called.
Marsupials and Australian placental mammals exhibit convergent evolution. Explain how ?