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Placental Mammal (Noun)

Mammals having a placenta; all mammals except monotremes and marsupials.

Nouns denoting animals.

Placental mammals, such as humans and other primates, have a highly developed brain and a complex nervous system.
The evolution of the placenta was a key innovation in the history of placental mammals, allowing for the nourishment of the developing fetus.
All placental mammals, from the smallest bats to the largest whales, have hair at some stage in their lives.
The reproductive strategy of placental mammals involves a long gestation period and the birth of relatively mature young.
Placental mammals are found on every continent and in almost every habitat, from the frozen tundra to the hottest deserts.