Marsupials, such as kangaroos, koalas, and wombats, are mammals that care for their newborn young in a pouch. all marsupials that are found in australia are thought to have evolved from a single species that migrated to the island and then adapted to the various niches. what does this example illustrate?

The correct answer is adaptive radiation.

Explanation:

Adaptive radiation is a process of rapid diversification of an ancestral species into a large number of descendant species in a different environment with adaptive morphological and physiological traits.  

Over 200 species of Marsupials mice, moles, flying squirrels and flying phalanger are found in Australia continent which was formed as a result of adaptive radiation from ancestral species to occupy the different niches of Australia.

Thus, adaptive radiation is the correct answer.

feral cats are estimated to eat tens of millions of native animals each night in australia

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