| − | The [[Evolution|evolutionary]] view is that kangaroos and other marsupials evolved from a common marsupial ancestor which lived hundreds of millions of years ago.<ref>[http://www.accessexcellence.org/AE/AEPC/WWC/1995/australia.html "Australian Mammals: Evolutionary Development as a Result of Geographic Isolation"]</ref> | + | The [[Evolution|evolutionary]] view is that kangaroos and other marsupials evolved from a common marsupial ancestor which lived hundreds of millions of years ago.<ref>[http://www.accessexcellence.org/AE/AEPC/WWC/1995/australia.html "Australian Mammals: Evolutionary Development as a Result of Geographic Isolation"]</ref> While it was once felt that "modern" placental mammals also descended from a marsupial lineage this view has been challenged by new findings in the fossil record, pushing the date at which the Human lineage diverged from the Kangaroo lineage back to before 125 million years ago. <ref>Benton, Michael J. (1997). Vertebrate Palaeontology. London: Chapman & Hall. p. 306. ISBN 0-412-73810-4.</ref> |