Top Interesting Facts About Koalas That Will Melt Your Heart

Written by: Know all Animals

Published on: 11/08/2025

The Koala is a tree-climbing, leaf-eating animal that is considered one of Australia’s national symbols. With a silky gray coat, a plump body, and large ears, the koala is one of the cutest animals in the world. If you want to know some Interesting Facts About Koalas, join KnowAllAnimals in this detailed article.

1. Top Interesting Facts About Koalas That Will Melt Your Heart

Let’s explore some interesting facts about koalas:

1.1. Not a Bear?

Although we commonly call them bears, these animals are actually marsupials, belonging to the same family as kangaroos, wallabies, and possums. Like other animals in this family, Koalas also have a pouch where newborns are nurtured and developed for about 7 months. During this time, they won’t leave their mother’s pouch until they are fully developed. The presence of the pouch is one of the most adorable and unique features of this animal.

1.2. The Name Means “No Drink”

An interesting fact about koalas is that they can survive without drinking much water. Their ancestors often avoided areas near water like rivers, lakes, or streams because those were places with many predators that could attack them. In the native language, the word for koala means “no drink,” because they are rarely seen drinking water. Instead, koalas are believed to get the moisture they need from the leaves they eat.

1.3. Their Main Food Source Is Eucalyptus Leaves

What do koalas eat? This animal only eats eucalyptus leaves, also known as gum leaves. However, these leaves contain compounds that are poisonous to many other animals. Only koalas can digest this type of leaf, thanks to a special organ in their digestive system called the cecum.

Because a baby koala’s digestive system is still weak, it doesn’t eat eucalyptus leaves right after birth. Instead, it is nurtured in its mother’s pouch until it is about 6 months old. At that time, its digestive system is strong enough to digest this poisonous leaf.

1.4. They Are Nocturnal Animals

Koalas are animals that can sleep for up to 20 hours a day because of their low-calorie diet. They have a habit of being active mainly at night, dawn, and dusk. This helps them save energy and get a better night’s sleep.

Their low-energy diet of eucalyptus leaves, along with the energy they use for digestion, is also a factor that helps koalas sleep well. Therefore, it’s best to limit their physical activity. An adult koala can eat about 1 kg of leaves in one night. This is enough food to provide them with energy for all their activities.

1.5. Poor Eyesight

Koalas have poor eyesight and rely heavily on their other senses to find food and move around. However, they have excellent hearing and a keen sense of smell. Thanks to these senses, they can track their own kind and other predators, as well as find their favorite food.

In particular, a koala’s sense of smell is very sensitive, which helps it find the right kind of eucalyptus leaves to eat. They can also detect other foods such as fruits, flowers, and honey. These senses are very important for a koala’s survival in its harsh environment.

1.6. Can Run as Fast as a Rabbit

Despite their lazy and slow appearance, koalas can actually run as fast as a rabbit. However, they typically only use their maximum speed when necessary to avoid danger or save energy for digestion.

Instead, koalas prefer to rest and climb trees to find food. They can climb trees up to 30 meters (100 feet) tall with ease, thanks to their claws and special noses. They can also maintain their balance on branches very well thanks to their large-clawed feet.

1.7. Newborns Are Only 2 cm Long

When a koala is born, it is only about 2 cm (0.8 inches) long. However, when they reach adulthood, their length can be from 60 to 85 cm (24 to 33 inches) and they can weigh about 14 kg (31 lbs).

Although they live in a harsh environment, koalas can live for up to 20 years without being threatened. However, in recent years, the koala population has decreased significantly due to the degradation of their habitat. Therefore, protecting and maintaining the habitat of this animal is a very important task.

1.8. Furthermore

Koalas are only about 63–88 cm (25–35 inches) long and weigh around 13 kg (29 lbs) or less.

A newborn koala is only about 2.5 cm (1 inch) long.

A newborn koala will stay in its mother’s pouch for 6 months.

Koalas mainly eat eucalyptus leaves and rarely drink water.

Koalas are not actually bears.

A koala sleeps for about 20 hours a day.

Male koalas mark their territory with a scent gland located on their chest.

An adult koala can eat about 1 kg (2.2 lbs) of leaves in one night.

A newborn koala is born without fur, and its eyes and ears are closed. Koalas are found mainly in Australia.

Eucalyptus trees are both food and shelter for koalas.

They are not social animals and are usually alone.

A female koala only gives birth to one baby per year.

They communicate with each other through grunts or deep growls in their throats, and sometimes by screaming.

They also have different types of fur in different areas of their bodies.

Koalas are most fully developed in their fourth year of life.

Their furry tail allows them to sit comfortably in a tree for hours on end.

2. Frequently Asked Questions About Koalas

In addition to the fascinating facts above, there are still many other questions about this animal that few people know about.

Where do Koalas live?

Koalas mainly live in the eastern and southern regions of Australia—specifically in Queensland, New South Wales, Victoria, and South Australia.

How many hours do Koalas sleep?

Koalas sleep for an average of 18–20 hours a day. Their main activities are sleeping and eating.

Do Koalas have a pouch?

Yes, koalas have a pouch. They are the only living marsupial in the family Phascolarctidae.

Where can I buy a Koala?

Koalas are a rare species, especially after the large Australian wildfires. This animal is now protected, so buying or adopting one is almost impossible and very difficult.

Are Koalas intelligent?

No, koalas are among the animals with the lowest IQs in the world. Their brain only makes up 2% of their total body weight, and it has few to no wrinkles.

3. Conclusion

In summary, after reading this article, you will surely have a lot of Interesting Facts About Koalas. If you love to explore and learn about unique animals, then Australia is a destination you shouldn’t miss. There, you’ll have the opportunity to meet and observe the unique and diverse wildlife of this country firsthand.

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