Assertion: marsupial | /r/HasAspect | placenta
Facets:
Source sentences:
text: Placentals - unborn young are nourished by a placenta (just to confuse things, some marsupials also have a placenta) and born at a more advanced stage, some still naked, blind and unable to walk for a week or two, others able to run on their day of birth
text: Instead of having a womb lined with a placenta that the egg attaches itself to and gains nourishment from, marsupials have no placenta and the baby must leave the womb, while still in a nearly embryonic state, to get nourishment from breast milk.
text: Marsupials have a uterus and a placenta.
text: Marsupials have both a uterus and a placenta.
text: Both mammals and marsupials have a uterus and placenta.