1. Ethan and Tina

2. Didelphimorphia Virginia opossums 93 species Paucituberculata Shrew Opossums 6 species

3. Notoryctemorphia Marsupial Moles 2 species Diprotodontia Koala 117 species Microbiotheria Monito del Monte 1 species Dasyuromorphia Tasmanian Devil 71 species Most Carnivorous Marsupials Peramelemorphia Bilby 21 species Omnivores

11.  Campbell, N. A., Reece, J. B., Urry, L. A., Cain, M. L., Wasserman, S. A., Minorsky, P. V., et al. (2008). Biology (8th ed.). San Francisco: Pearson, Benjamin Cummings.  Palaeos Vertebrates 440.100 Metatheria. (n.d.). Palaeos. Retrieved February 15, 2011, from http://www.palaeos.com/Vertebrates http://www.palaeos.com/Vertebrates  University of Melbourne (2008, July 15). Marsupials And Humans Share Same Genetic Imprinting That Evolved 150 Million Years Ago. ScienceDaily. Retrieved February 16, 2011, from http://www.sciencedaily.com­ /releases/2008/07/080715090413.htm 