The upcoming discussion will update you about the difference between metatherian and eutherian. Difference # Metatherian: 1. Marsupium (Brood pouch in the abdomen): Present in most females [absent in Australian numbat (marsupial ant- eater—Myrmecobius fasciatus), American Chironectes, Marmosa, and Monodelphis] 2. Young: Extremely immature young’s are born and complete their development in the marsupium. 3. […]