Mammals on Australia are mostly pouched (marsupials) and the mammals elsewhere i

Question

Mammals on Australia are mostly pouched (marsupials) and the mammals elsewhere in the world are mostly not pouched. Why is this?

Select one:

a. Pouched mammals have only ever existed on Australia ,and it's too far to migrate.

b. The continent of Australia has been isolated from the others such that its species have evolved separately for a long time.

c. No one knows why this is. It's an area of biodiversity under intense study.

d. A secure pouch is necessary for the highly variable and chaotic Australian habitats and not so much elsewhere.

Explanation / Answer

The pouched mammals like Marsupials are found in Australia. This is because the continent Australia has been isolated from others ans the species have evolved seperately for a long time. Option b is correct.

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