This year we made an incredible journey deep into the rainforest to see some of the most fascinating animals in Borneo. If you’re dreaming of unforgettable wildlife encounters, Borneo is one of the best destinations on the planet. The island is home to rare primates, colourful birds, mysterious reptiles, and an extraordinary range of endemic species found nowhere else on Earth.
Borneo, located between between Malaysia and Indonesia in Southeast Asia, is the world’s third-largest island and home to one of the oldest and most biodiverse rainforests. Its landscapes range from dense jungle to mangrove swamps and coral-rich coastlines, creating a haven for Borneo wildlife. Unfortunately, many Borneo rainforest animals are now endangered due to habitat loss and deforestation.
This travel guide shares the incredible creatures we encountered on our 12-day family adventure in Borneo and highlights the best places to see them. Although our main goal was to see the extraordinary Borneo orangutan, we soon discovered the island offers so much more.
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Orangutans in Borneo
One of the top reasons many travellers visit Borneo is to see the Borneo orangutan, the only great ape found in Asia. It’s one of only two places in the world where orangutans live, with the other being the island of Sumatra. I’ve loved these long-haired primates since childhood, so this experience was the lifetime dream come true.
Our first sightings of orangutans were at the Sepilok Orangutan Rehabilitation Centre, one of the most important conservation sites in Sabah. Here, rescued and orphaned orangutans learn essential skills for life in the wild. At Sepilok, you can see orangutans of all ages, from tiny babies in the nursery to older individuals who roam more freely and practise living independently in the surrounding forest. Sadly, orangutans are a critically endangered animal and with rainforest destruction increasing, the work at Sepilok is vital for protecting the Borneo orangutan.
If you want to visit the sanctuary, you can either book accommodation in Sepilok or take a day trip from Sandakan.
Later in our trip, we spotted orangutans in the wild, during a river safari along the Kinabatangan River. This trip was easy to book as part of an all-inclusive Borneo wildlife tour and was definitely one of the highlights of our trip.
If you’re hoping to see wildlife in Borneo, pack a good pair of binoculars. You’ll need patience and a sharp eye, as the animals will be hiding high in the canopy. However, it’s worth the wait, as the thrill of spotting your first orangutan in unforgettable!

Proboscis monkeys

The unusual Borneo proboscis monkey is instantly recognisable thanks to its enormous nose and round belly. A male’s nose can grow up to an astonishing 18 cm long! As strange as it looks, the proboscis monkey uses this oversized nose to amplify warning calls and attract mates, making it an important part of their social behaviour.
These monkeys live alongside orangutans along the Kinabatangan River and are much easier to spot because they move in large groups. They often leap into action when they hear approaching boats, creating a wonderful opportunity for visitors who are wildlife watching.
Sadly, the proboscis monkey is another of the endangered species in Borneo, because of the destruction of its habitat.
For an even closer look, visit The Proboscis Monkey Sanctuary in Labuk Bay, about 43 km from Sandakan. This sanctuary provides home to more than 60 protected proboscis monkeys and is a great place for anyone hoping to observe on of the most distinctive Borneo monkey species in their natural mangrove habitat.
You could book a Sepilok, Sun Bear and Labuk Bay Tour with lunch.
Sun bears
At the Sun Bear Conservation Centre in Sepilok (just opposite the Orangutan Sanctuary) we came face to face with the world’s smallest bear. Sun bears are native to Southeast Asia and have a distinctive pale yellow horseshoe marking on their chest. They also have a very long tongue which helps them get honey from bee hives.
Watching the sun bears close up forage and relax in the forest was a delightful experience. Don’t miss the opportunity to go when you are visiting the orangutans at Sepilok.

Green turtles and marine life in Borneo

A trip to Turtle Island is a must for wildlife lovers. Turtle Island Park lies 40km North of Sandakan in the Sulu Sea, and its protected beaches are important nesting and breeding grounds for both Green and Hawksbill Turtles.
During our visit, we watched a mother turtle lay 73 eggs and later saw a basket of tiny hatchlings released to the sea, an unforgettable experience. We also came across sea cucumbers, starfish, a sea snake, colourful sponges, and a variety of fish in the surrounding waters.
Later, whilst staying in Kota Kinabalu, we visited one of the five islands within the Tunku Abdul Rahman National Park, where the coral reefs are teeming with marine life. The highlight was a green turtle swimming past us.
For practical tips, check out my post on how to visit Turtle Island Sandakan.
Macaque monkeys
Two species of macaque, the pig-tailed and long-tailed macaque, share the jungles of Borneo with orangutans. These lively monkeys live in large social groups and spend their time in the lower trees, making them far easier to spot than orangutans. We saw plenty of macaques during our safari on the River Kinabatangan, and they didn’t seem at all bothered by the approaching boats.
Watching macaques leap effortlessly between branches was endlessly entertaining. Amazingly, they never seem to fall, though it often seems close!
The Sabah Wildlife Department has built rope bridges to help wildlife, including macaques and apes, cross fragmented forest areas. We saw a few macaques attempting these crossings, though not always with confidence!
Orangutans cannot swim, and there have also been sightings of them using these precarious bridges, though unfortunately not during our visit.

Borneo pygmy elephants

The Borneo pygmy elephants are only found in the northeast corner of Borneo. We were lucky enough to spot a young elephant hiding among the reeds on the banks of the Kinabatangan River. We even found signs that elephants had passed close to our jungle lodge the night before!
Malaysian monitor lizards
Monitor lizards are common across Sabah. We often saw them basking by the riverbanks or wandering through the hotel grounds in Sandakan and Kota Kinabalu. They ae surprisingly unfazed by humans, though you should admire them from a safe distance.
We also saw a few monitor lizards perched in trees on Turtle Island, probably hoping to get lucky with some abandoned turtle eggs.

Saltwater crocodiles
Saltwater crocodiles are another impressive species you’ll see basking by the shores of the Kinabatangan River. We watched a huge adult croc sunning itself on the riverbank and later encountered a smaller junior on a mudflat.


Frogs, geckos & other reptiles
You don’t need to go far to find Borneo rainforest animals. We discovered a tiny, well-camouflaged frog blending with the mud and a cheeky gecko who joined us for dinner!


The birds of Borneo
Birdwatchers will love Borneo.
We spotted many native Borneo birds along the banks of the River Kinabatangan, including several types of hornbills.
However, our favourite sighting was the Oriental Dwarf Kingfisher, the smallest and most colourful of all kingfishers, which only lives in lowland rainforest.
We found one roosting during our night walk with our guide at Nature Lodge, Kinabatangan. It was so still I didn’t think it was real, but could see its little heartbeat.

Insects & night-time wildlife
Night walks revealed a very different side to the jungle and are great for discovering the smaller, more unusual creatures of the rainforest. I’d highly recommend doing one, even though they can be a bit scary.
The kids were very good at using their fluorescent torch to spot scorpions glowing in the dark. They also found a praying mantis.

Bats in Gomantong Caves
On the way back to Sandakan, you’ll have the option to stop at the Gomantong Caves, home to millions of wrinkle lipped free-tailed bats. at dusk, they fly out in a spectacular mass exodus.
There cave is also home to thousands of cockroaches who have made their home in the guano deposits. It is very smelly, but there is also a chance you may spot an orangutan here.
PIN FOR LATER: The fantastic animals in Borneo

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