With fluffy ears, round heads, and spoon-shaped noses, koalas are known for their lovable faces.
But these sleepy, Australian tree dwellers are full of surprises.
Koalas are not bears, they're marsupials.
Often mislabeled koala bears because of their teddy bear-like appearance, koalas are marsupials, mammals that give girth to undeveloped young.
Like most marsupials, mother koalas have pouches, where baby koalas, or joeys, drink their mother's milk and continue to develop for around six months.
But unlike most other marsupials, koala pouches open toward the bottom.
This allows joeys to access and consume a substance their mother secretes, which aids in the baby koala's digestions.
Koalas have six opposable thumbs.
With sharp pointed claws and rough pads, koala hands and feet are uniquely designed to grip branches.
Their front paws have five digits.