Classify each of these mammals as either marsupial or placental
Marsupial: kangaroo, koala, wallaby, wombat, opossum, bandicoot, possum, glider

Placental: cow, dog, sloth, rhinoceros, camel, horse, sheep, humans, elephant, manatee, anteater, cat, bat, pig, deer, giraffe, goat, alpaca, llama

Marsupials give birth to undeveloped young that are carried in a pouch located on their mothers' abdomen until they're fully developed.

Placental mammals carry a young the fetus in the uterus of its mother to a relatively late stage of development.