Classification of Marsupialia | Vertebrates | Chordata | Zoology
Marsupials are mammals basically similar to the Eutheria, but their youngs are born in a rudimentary condition and are generally sheltered during their later development within an integumentary pouch, the marsupium. However, pouch is lacking in the Australian Numbat (marsupial ant- eater, Myrmecobius fasciatus) in which the youngs are dragged along, clinging to the nipples. Marsupium is also lacking in [...]