Give an example where more than one adaptive radiations have occurred in an isolated geographic
area. Name the type of evolution your example depicts and state why it is so named.
 

When more than one adaptive radiation appear to have occurred in an isolated geographical area and two or more groups of unrelated animals come to resemble each other for similar mode of life or habitat, it is called convergent evolution.

Convergent evolution of Australian marsupials and placental mammals are example of this evolution.