.
.
*’placentalia’ is 1 of the 3 extant sub-divisions of the class of animals ‘mammalia’*
.
(the other 2 are ‘monotremata’ + ‘marsupialia’)
(the 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*
.
.
.
.
.
.
.
.
*.
.
