Placental Mammal

AKA: Placentalia.
Example(s):
- a Great Ape, such as: a Homo Sapien.
- Carnivora, such as cats and hyenas.
- Ungulates, such as Cows, Horses, and Whales.
- …
Counter-Example(s):
- Monotremata.
- Marsupialia.
See: Pouch (Marsupial), Paleocene, Holocene, Common Vampire Bat, Eastern Gray Squirrel, Plains Zebra, Aardvark, Humpback Whale, Black And Rufous Elephant Shrew, Human, Ground Pangolin.

References

https://theguardian.com/science/2022/oct/27/the-framing-of-the-shrew-as-placental-mammals-last-common-ancestor
- QUOTE: ... The results suggest placental mammals got their break around the time of the mass extinction 66m years ago, when an asteroid ploughed into Earth and wiped out the non-avian dinosaurs and a host of other life. Before this time, the team note, the ancestors of the major groups encompassing today’s placental mammals all had similar shaped skulls. But from then on, contrary to some theories, diversification happened rapidly. ...

(Wikipedia, 2022) ⇒ https://en.wikipedia.org/wiki/Placentalia Retrieved:2022-11-2.
- Placental mammals (infraclass Placentalia ) are one of the three extant subdivisions of the class of animals Mammalia; the other two are Monotremata and Marsupialia. Placentalia contains the vast majority of extant mammals. Placentals are partly distinguished from other mammals in that the fetus is carried in the uterus of its mother to a relatively late stage of development. The name is something of a misnomer considering that marsupials also nourish their fetuses via a placenta, though for a relatively briefer period, giving birth to less developed young who are then kept for a period in the mother's pouch.