music: http://soundcloud.com/querflote Special Thanks To: The Sleepy Burrow Wombat Sanctuary http://www.sleepyburrows.com.au/ CSIRO http://www.csiro.au/ The Lincoln Childrens Zoo http://www.lincolnzoo.org/ Film Footage courtesy of Shutterstock, Inc., Used by Permission Illustration from Anatomy & Physiology, Connexions/OpenStax College http://commons.wikimedia.org/wiki/File:2910_The_Placenta-02.jpg Placenta http://commons.wikimedia.org/wiki/File:Placenta.svg baby kangaroo/CSRIO https://www.youtube.com/watch?v=EkKT6H2SMHU NEW Joey Inside A Tree Kangaroo Pouch/Lincoln Childrens Zoo https://www.youtube.com/watch?v=DL8ei6NkG0I