What did kangaroos evolve from, and how did they get to Australia?

<h3>What did kangaroos evolve from, and how did they get to Australia?</h3>

How long has Australia been an island?
The last time I asked a question in the science section, I only got one answer, and it did not really answer the question.


<strong>Australia best answer:</strong>
<p><i>Answer by G Gibson</i><br/>They jumped~~~~~~~~~~.</p>
<p><strong>Australia Day</strong>
<img alt="Australia" src="http://farm1.staticflickr.com/34/71147810_84d2997bca.jpg" width="400"/><br/>
<i>Image by <a href="http://www.flickr.com/photos/83321526@N00/71147810">Jessica.James</a></i>
The flag tatoo I put on my cheek for Australia day. </p>

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