View example sentences and word forms for Placentals.
Placentals meaning
plural of placental
Example sentences (4)
For one thing, it relies on the assumption that these mammals are "inferior" to more derived placentals, and ignores the fact that rodents and multituberculates have co-existed for at least 15 million years.
The marsupials constitute the crown group of the Metatheria, and include all living metatherians as well as many extinct ones; the placentals are the crown group of the Eutheria.
These epipubic bones seem to function by stiffening the muscles during locomotion, reducing the amount of space being presented, which placentals require to contain their fetus during gestation periods.
This requirement has been argued to have resulted in the limited range of locomotor adaptations in marsupials compared to placentals.