Here's why:
* Marsupials are mammals that give birth to relatively undeveloped young, which then complete their development in a pouch on the mother's abdomen.
* Placental mammals give birth to more developed young that have been nourished inside the mother's womb via a placenta.
Anteaters are part of the Xenarthra order, which also includes sloths and armadillos. They are native to Central and South America and are known for their long snouts, sticky tongues, and lack of teeth.