Nature curiosity: Why do marsupials have pouches?

For marsupials, only adult females have pouches, and they serve an important role in the reproductive process. 

Life cycle of the Koala - Australian Koala Foundation

What is the smallest living species of marsupial? How does it compare to other types of mammals in size? - Quora

Exploring the kingdom of kangaroos and why they pack such a powerful punch

Possum. An ecological nightmare.

Rock Run Rookery Preserve

10 Incredible Facts About Kangaroos

Why Do Kangaroos Have Pouches? Animal Science for Kids

How Did the Marsupial Get Their Pouch?, by Jennifer R. Povey

13 Bouncy Kangaroo Facts About Australia's Iconic Marsupial

Discover the fascinating world of kangaroos in Why Do Kangaroos Have Pouches? This educational and engaging children's book takes young readers on

Why Do Kangaroos Have Pouches?: Why Do Kangaroos Have Pouches?: Exploring the Fascinating World of Marsupials