📖 what
What is a placental mammal?
AnimalsMammals
Quick Answer
A placental mammal is a mammal whose young develop in the uterus and receive nutrients through a placenta. Humans, elephants, and whales are placental mammals.
The Full Story
Placental mammals form the largest living mammal group, and they include most familiar species on Earth. Their developing young are nourished by the placenta, an organ that helps exchange oxygen, nutrients, and waste between mother and fetus. This longer internal development usually produces relatively well-developed newborns compared with marsupials. Placental mammals adapted to land, sea, and air, leading to huge diversity in body size, diet, and lifestyle.
Key Facts
1.Humans are placental mammals
2.The placenta supports fetal development in the uterus
3.They are the largest living mammal group
YouTube Angle
Suggested video title for this topic:
"Why most mammals are placental—and what that changes"