Placental

• They are divided into 4 groups:

* Xenarthra
* Afrotheria
* Lauristheria
* Euarchontagilres

• They have a placenta

• They have a malleolus

Placenta - An organ which the unborn baby get nutrients, and oxygen
Malleolus - A bony projection with a shape likened to a hammer head, especially each of those on either side of the ankle.