Practicing Success
Identify the example of Australian Marsupial from the following: |
Flying squirrel Flying phalanger Bobcat Mole |
Flying phalanger |
The correct answer is Option (2)- Flying phalanger Australian marsupials is a example of adaptive radiation . A number of marsupials, each different from the other evolved from an ancestral stock, but all within the Australian island continent. When more than one adaptive radiation appeared to have occurred in an isolated geographical area (representing different habitats), one can call this convergent evolution. Placental mammals in Australia also exhibit adaptive radiation in evolving into varieties of such placental mammals each of which appears to be ‘similar’ to a corresponding marsupial (e.g., Placental wolf and Tasmanian wolf-marsupial). Picture showing convergent evolution of Australian Marsupials and placental mammals |