Assertion: marsupial | /r/HasProperty | metatheria
Facets:
Source sentences:
text: Monotremes (from Greek μονός, monos ('single') and τρῆμα, trema ('hole'), referring to the cloaca) are one of the three main groups of living mammals, along with placentals (Eutheria) and marsupials (Metatheria).
text: Marsupials are metatherians, which include a number of other marsupial-like groups now extinct (such as the South American sparassodonts, some species of which were convergently similar to sabertooth cats).
text: Mammals are separated into two distinct evolutionary lines: the marsupials (metatherians) and the placentals (eutherians).
text: The latter subclass is divided into two infraclasses: pouched mammals (metatherians or marsupials), and placental mammals (eutherians, for which see List of placental mammals).