Koalas

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 birth 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 Koala most other marsupials koala pouches open toward the bottom. This allows joeys to acces and consume a substance their mother secretes, which aids in the baby koala's digestion. 

Koalas have six opposable thumbs. With sharp pointed claws and rough pads, koala hands and feet are uniquely designed to grab branches. Their front paws have five digits, two digits oppose the other three like a pair of thumbs. 

Their backpaws each have one large clawless opposable digit which allows them to grasp branches with their feet freeing their hands to forage. Koalas feet also have built in combs, the second and third toes are fused together and are used for grooming their wooly fur. 

Koalas eat leaves that are poisonus to many animals. The Koala diet consists almosy entirely of eucalyptus leaves.  

of the rougly of 650 speciels of eucalypt trees in australia koalas prefer only about 30 of them.  

The leathery leaves are very high in fiber and contain chemicals toxic to other animals 

to process this specialised diet, koalas have a closed end of digestive organ called a caecum which helps digest the leaf fibers via fermentation.  

koalas sleep up to 22 hours per day.  Because of their low nutrition diets and sluggish metabolism koalas must conserve their energy.  Koalas spent about 10% of their day eating and about 90% of their time sleeping. 

To acomodate so much time spent sleeping in tree branches, Koalas have curved spines and tailess rears padded with cartilage and extra thick fur.

Koala habitat is quickly disappearing.  Koalas only live in eastern and south eastern australia and once numbered in the millions now while koala population estimates vary from 43,000 to 350,000. 

Vast tree clearing due to urbanisation, along with droughts and forest fires, have drastically reduced koala habitat since the early 1900s.  These stressors have made koalas vulnerable to diseases as well as dog attacks and vehicle strikes.

Australia's conservation plans include designating and protecting koala habitat and funding koala hospitals and disease research. These combined efforts are critical to protect the beloved koala from extinction