A young Bornean amputee, about fourteen, at the cave threshold looking back with a warm gaze
TEBO 1 · The Genesis of Compassion

TEBO 1

The Genesis of Compassion

What if care is the oldest root of being human? Thirty-one thousand years ago, in a cave in the mountains of Borneo, a community performed the oldest known successful major operation and nursed a child back to life over the decade that followed. This is where compassion begins.

Liang Tebo · Borneo 31,000 years ago The origins of care
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The Mission

One of the earliest stories of human care ever found.

A documentary cinematographer filming the expedition team wading up a misty karst river at dawn25-Min Documentary · Nov 2026Expedition Film
The story, filmed on location
Tebo 1's world dissolving into a glowing 3D LiDAR scanTechnology
Scan to screen
A present-day viewer in a VR headset reaches out to Tebo 1, the young amputee child on a makeshift peg, who reaches back across 31,000 years inside a glowing point-cloud reconstruction of the caveVR Experience
Step inside the cave
A child reaches an open hand toward a wary Denisovan in the Borneo forest, a feathered woman watchingIn developmentFeature FilmAn Epic Productions story concept
The cinematic vision
A traveling exhibition of stacked shipping containers in the middle of Times Square, its dark walls glowing with ochre hand stencils, opening onto a reconstructed cave that a crowd steps intoIn developmentExhibition
Carrying care into the city
The Discovery

A skeleton that rewrote the human story.

In early 2020, Professor Maxime Aubert sent his team to uncover the lifeways of the people who made some of the world's oldest cave art. The archaeological excavations were led by the late Dr Tim Ryan Maloney and co-directed by Dr India Ella Dilkes-Hall and Andika Arief Drajat Priyatno. Their patient work in the cave floor turned up what no one was looking for: a careful, deliberate burial in a remote cave we now call Liang Tebo.

The skeleton was a young person, around ten or eleven when injured, whose lower-left leg had been surgically amputated and fully healed. The remodelled, infection-free bone is the mark of skilled surgery. That the young individual lived for nine to ten years after the amputation tells us a community carried and cared for the child long after. Published in Nature, it is the oldest known successful major operation in human history.

And it does not stand alone. Around the burial, the cave walls hold some of the world's oldest hand stencils, and ochre was recovered near Tebo 1's mandible, linking the grave to art and ritual. A single cave holding evidence of surgery, art, and burial marks a turning point in the human story.

The full skeleton of Tebo 1, the 31,000-year-old amputee, from the Nature paper
Tebo 1's skeleton. The lower-left leg, amputated and healed. Maloney et al., Nature, 2022.
31,000
Years ago
#1
Oldest successful major operation
40,000+
Year-old hand stencils
Nov 2026
Return expedition
Ancient red hand stencils on a cave ceiling in the Sangkulirang–Mangkalihat karst, Borneo
Some of the world's oldest hand stencils, in the karst caves of East Kalimantan.
Researchers excavating the burial pit inside Liang Tebo cave
The excavation at Liang Tebo. Photo: Dr India Ella Dilkes-Hall.
An aerial view of a cave high in a limestone cliff, Sangkulirang–Mangkalihat karst, Borneo
A cave in the cliffs of the Sangkulirang–Mangkalihat karst.
Ancient narrative rock-art figures painted on a cave wall in East Kalimantan
Narrative rock art from the same deep-time landscape.
An imagined reconstruction of a Pleistocene community tending an injured child in a Borneo cave
31,000 Years Ago

Care, not conquest, may be the oldest human trait.

Surviving a childhood amputation and living into adulthood took more than a skilled hand. It took a community that chose to stay, and to carry one of its own for years.

Tebo 1's story rises from a land of firsts, where some of the oldest art on Earth still glows on cave walls. Against the cold logic of survival of the fittest, here is a life that an entire community chose to hold up.

Together, the healed bone and the hand stencils nearby point to one thing: our humanity exists in the choices we make to care for one another.

A Personal Connection

Why this story feels personal.

At the heart of it is a child who lived 31,000 years ago. And for the people rediscovering and telling their story, the care that kept Tebo 1 alive is not an idea to be argued. They have lived it, from both sides.

Prof. Maxime Aubert, turned toward Tebo 1

Prof. Maxime Aubert

Project Co-Lead · Science · Griffith University · National Geographic

An archaeologist and geochemist at Griffith University, Maxime is a leading authority on dating the deep past. His uranium-series dating of cave art established the age of the oldest figurative paintings ever found, moving the origins of art from Europe to the islands of Southeast Asia. His search for humanity's earliest images first brought the team to Liang Tebo. He grew up beside the same truth at the heart of this story: his father lost a leg at twelve, and care for an amputee was part of his own childhood.

Tebo 1, an imagined reconstruction, standing in the mouth of the cave looking out over the karst, the left leg amputated below the knee Imagined reconstruction.

Tebo 1

Project Lead · 31,000 Years Ago

The child at the heart of it all. A leg lost below the knee in childhood, and bone that kept growing for ten years afterward, proof that a community carried and cared for Tebo 1 long after the surgery. Ochre in the mouth and stained teeth may be among the earliest traces of plant medicine. Newer DNA analysis hints at an endocrine difference, a body that may have been intersex. The oldest proof we have that to be human is to care. Every part of this work serves that story.

Dr. Albert Lin, a below-knee amputee, on a mountain ridge with his full prosthetic leg visible

Dr. Albert Lin

Project Co-Lead · Explorer & Storyteller · National Geographic

An engineer turned National Geographic Explorer, storyteller, and below-knee amputee, Albert has built his career revealing lost worlds without disturbing them, using LiDAR to lift hidden histories from the dark, from the Maya cities to the Holy Lands, in series like Lost Cities with Albert Lin. The same tools now bring Tebo 1's cave to light. He shares Tebo 1's exact loss, and has known care from the other side: when his young son's life hung by a thread, his family brought him back, his own handprints on the cave wall.

"My own community became my hand stencils on the cave wall."
"The story of Tebo 1's world is written on the walls of these caves, and there is so much yet to be found."
Upcoming Expedition

November 2026

Sangkulirang–Mangkalihat Karst · East Kalimantan, Borneo · ~1°N 118°E

This November's expedition has three goals, pursued as one: to capture Liang Tebo in ultra-photorealistic LiDAR before it is lost, to film the documentary that launches Tebo 1's story, and to push into the unexplored high karst of Tondoyan in search of caves and rock art no one has yet recorded. The full logistics are in the timeline below.

~27
Days in the field
2
Days by canoe to Liang Tebo
2
Teams · science + story
2
Sites scanned · Liang Tebo + Tondoyan
Pending anticipated support from the National Geographic Society · currently in review
The expedition team wading up a muddy jungle river to reach Liang Tebo
Reaching Liang Tebo, deep in the rainforest. Photo courtesy of Tim Maloney, the Liang Tebo expedition.
The Expedition Plan
1
Phase 01 · Days 1–2 · Canoe in

Two days upriver to Liang Tebo

From the river head, two days by canoe carry the team and its gear deep into the Sangkulirang–Mangkalihat karst to Liang Tebo, far beyond any road or signal. This is the isolation that has kept the story untouched for 31,000 years.

A loaded expedition canoe moving up a misty jungle river between towering limestone karst cliffs
Two days by canoe into the karst. Concept image.
2
Phase 02 · Days 3–7 · Liang Tebo

Scan the site, search the karst

Five days at the discovery site. Terrestrial LiDAR and photogrammetry build a millimetre-accurate 3D archive of Liang Tebo, while drone-LiDAR survey grids strip the canopy off the surrounding karst to guide on-foot recon of new cave systems no one has entered.

A terrestrial LiDAR scanner sweeping green laser light across a dark cave chamber
Scanning Liang Tebo to millimetre accuracy. Concept image.
3
Phase 03 · Days 8–10 · Portage

River portage to Tondoyan

A two-to-three-day river portage pushes deeper into the landscape to Tondoyan, the highest karst formation in the region and one of its least explored.

The expedition team portaging gear and a boat along a boulder-strewn jungle river
Portaging gear toward the high karst. Concept image.
4
Phase 04 · Days 11–24 · Tondoyan

Into the unexplored

Two weeks exploring the vast cave systems of Tondoyan, dark mouths visible from across the valley but never entered, searching for the new rock art and burial chambers that could carry Tebo 1's story across the wider karst.

Two tiny explorers at the gaping mouth of an enormous unexplored cave in a towering karst cliff
The unexplored caves of Tondoyan. Concept image.
5
Phase 05 · Days 25–27 · Out & deliver

Carry it to the world

The team runs the river back out, carrying redundant copies of the data the whole way. What leaves is a permanent spatial archive of two of the world's most significant prehistoric landscapes, the foundation for film and for the case for UNESCO World Heritage protection.

Conducted with BRIN and the Dayak custodian communities, and screened in-region first. Indicative field plan; exact dates and durations depend on river conditions, weather, and permits. Imagery is AI-generated concept art for TEBO 1.

The Technology · LiDAR & Visualskies

One scan, two missions.

A single LiDAR scan serves both halves of this project. It searches the karst for caves no one has found, and it records Liang Tebo in photoreal 3D so the rest of the world can step inside.

Aerial LiDAR bare-earth scan of the karst with natural cave openings revealed The same karst landscape under unbroken rainforest canopy
Forest canopyLiDAR · caves revealed
DJI M600 · LiDAR
Possible cave
Possible cave
Possible cave
Possible cave
Possible cave
Possible cave
Possible cave
Possible cave
Possible cave
Possible cave
Possible cave
Possible cave

Drag the drone. Aerial LiDAR sees through the canopy to the bare limestone, revealing cave openings no one has entered. Highlighted: potential cave openings. Concept visualization.

CGI reconstruction of Tebo 1's world 31,000 years ago, the landscape dissolving into a glowing wireframe mesh
Scan to Screen

The same scan rebuilds the cave's lost world.

From that LiDAR data, Visualskies reconstructs Liang Tebo and its 31,000-year-old world in photoreal 3D, the foundation for the documentary and the immersive experiences that carry it to everyone.

A Method Years in the Making

Expedition-tested technology.

The same LiDAR and 3D toolkit behind Lost Cities with Albert Lin, refined over fifteen years with Visualskies and now turned on Liang Tebo.

The Sangkulirang–Mangkalihat karst cliffs and jungle of East Kalimantan, Borneo
A Race Against Time

The caves that hold this story are vanishing.

Tebo 1’s world, the Sangkulirang–Mangkalihat karst of East Kalimantan, is being eaten away by logging, mining, and palm-oil monocropping. Without action, the cave, its burial, and the ancient art our species left there could be lost within years.

Conservation · Co-Stewardship

Awareness may be the karst’s best protection.

Tebo 1’s home holds more ancient rock art than anywhere else in Southeast Asia, including some of the oldest figurative paintings ever found on Earth, dated in these very caves by our own Prof. Maxime Aubert. It is also counted among the ten most endangered karst landscapes in the world.

1.8M ha
Of karst under pressure
40,000+
Years, among Earth’s oldest art
Top 10
Most-threatened karsts on Earth
2015
On UNESCO’s World Heritage shortlist

Its limestone is hunted for cement, its forest cleared for oil-palm, coal, and logging, with pressure rising as Indonesia builds its new capital, Nusantara, nearby. More than 40% of the karst here already sits under mining concession. Quarry a single tower and the caves, burials, and art inside are gone for good.

Nothing here is done to the region; it is done with it. The work is co-designed with BRIN, Indonesia’s National Research and Innovation Agency, Indonesian scholars, and the Dayak custodian communities whose ancestral land this is, with consent first and screenings in the region before anywhere else.

The vision works on two fronts. First, bring this story of care to the world when it is badly needed: proof, written in bone and ochre, that humanity's origins lie in compassion and empathy. Second, turn that attention back onto the karst, strengthening the case for UNESCO World Heritage protection and backing the Indigenous and local stewardship already fighting to hold this landscape against mining, logging, and monocropping.

Sources: UNESCO World Heritage Centre tentative list (2015); Aubert et al., Nature (2018, dating the karst’s rock art); The Nature Conservancy; Mongabay.

The Vision

What this November makes possible.

This November's expedition is step one. From it we create a 25-minute documentary and an immersive VR experience. From there the full ambition follows: a feature film, a traveling exhibition, and a conservation initiative, each retelling human origins as a story of care.

The Launch Pad

Built on the November expedition, with anticipated support from the National Geographic Society, currently in review.

The Full Ambition

The documentary and the immersive VR come first. The feature film and the traveling exhibition grow from them.

The Launch Pad · Now
25-Min Documentary
Immersive VR
Story → SupportThe film & VR take the story to the world, building the audience, partners, and funding to move each chapter through production.
Scans → BaselineThe expedition's LiDAR & photogrammetry become one millimetre-accurate spatial twin, the foundation both are built on.
The Full Vision · Next
Feature Film
Traveling Exhibition
The Feature · Visual Lookbook

Scene by scene, the film it could be.

Open the storyboard below to step through the imagined feature, scene by scene, from the first surgery by firelight to the hand stencils on the wall. On a phone, turn it sideways for the full-screen view.

An Exercise in Anthropology

The challenge of imagining the dawn of us.

This is an exercise in the anthropology of our deepest roots. To rebuild Tebo 1’s world, we imagine a mind 31,000 years old, from the moment we crossed from animal to human. The evidence is almost nothing: a healed skeleton, ochre by a child’s jaw, stencilled hands on a wall. So we ask what an anthropologist and a filmmaker must ask together:

What is it to be human before cities or words, when the forest is kin and every animal a messenger?

When a child could no longer keep up, what made a band stay and carry them instead of moving on, and where did that come from in us?

With only the forest for medicine, no antibiotics or anaesthetic, how did they cut, heal, dull the pain, and keep a child alive for years after?

What was it to share these islands with another kind of human, to meet a Denisovan face to face and know we were not the only people on Earth?

Tebo 1 and his friend meet a wary Denisovan in the Borneo rainforest; Tebo 1 reaches out an open hand
Imagining first contact: Tebo 1 and his friend meet a Denisovan, another kind of human. Concept image.
The traveling exhibition of stacked shipping containers glowing with ochre hand stencils, opening onto a reconstructed cave of stalactites and firelight, set on a Paris plaza with the Eiffel Tower beyond
The Traveling Exhibition

Carrying the oldest proof of care into the modern city.

A walk-in pavilion of shipping containers, set down in city plazas from New York to Jakarta and finally home to Borneo. It brings two deep-time firsts into our cities, the oldest known successful surgery and the oldest figurative art our species has found, both from these same islands, to bring one idea where we need it most: that being human begins with caring for one another.

Enter the exhibition →
The Team & Partners

The people behind Tebo 1's story.

The scientists who found Tebo 1, the studio that can rebuild its world, and the storytellers bringing it to the screen.

01
The Discoverers &
Holders of the Culture

The scientists who found Tebo 1, and the Dayak communities who hold the land and its meaning.

Science · Custodianship
Prof. Maxime Aubert
Sent the team

Prof. Maxime Aubert

The senior scientist whose search for the world's oldest cave art brought the team to these caves, and a leading authority on dating the deep past. Raised by a father who is an amputee.

TM
Director of excavations

Dr Tim Ryan Maloney

Archaeologist and stone-artefact specialist who led the 2020 recovery of Tebo 1.

Dr India Ella Dilkes-Hall
Co-directed the excavations

Dr India Ella Dilkes-Hall

Archaeologist and archaeobotanist who studies ancient plant use; Tebo 1's surgery, survival, and healing suggest a deep understanding of the ecological knowledge of medicinal plants.

AP
Co-directed the excavations

Andika Arief Drajat Priyatno

Archaeologist and co-director of the 2020 Liang Tebo excavations.

Dr. Melandri Vlok
Read the bones

Dr. Melandri Vlok

The bioarchaeologist who recognized the healed amputation, the physical proof of skilled surgery and long-term care.

Prof. Renaud Joannes-Boyau
Dated the bones

Prof. Renaud Joannes-Boyau

The geochronologist who directly dated the ancient remains with cutting-edge atomic analyses, helping prove the amputation happened 31,000 years ago.

Dr. Adhi Agus Oktaviana
Opens the door · BRIN

Dr. Adhi Agus Oktaviana

One of Indonesia's foremost rock-art scholars; holds the permits, institutional trust, and the bridge to Dayak custodians.

Dayak community members in traditional dress in the Borneo rainforest
Hold the land

Dayak Custodian Communities

The custodians whose landscape, knowledge, and consent anchor every part of this work.

Photo © BOSF
02
Epic Productions

The storytellers bringing Tebo 1 to the world across film, immersive technology, and impact.

Story · Production · Impact
Dr. Albert Lin
Carries the story

Dr. Albert Lin

The project's storyteller, developing the full vision, a National Geographic Explorer and a below-knee amputee who shares Tebo 1's exact injury.

John Harrington
Shapes the film

John Harrington

Documentary director and cinematographer with a decade on blue-chip natural-history and expedition series for National Geographic, Disney+, BBC, and Discovery, and a longtime collaborator of Albert's, co-creating Iceland: The Realm of Magic.

Laura Wolf Stein
Builds the coalition

Laura Wolf Stein

Executive producer and impact strategist; two decades building purpose-driven, fundable storytelling.

Hunter Bliss
Keeps it moving

Hunter Bliss

Producer at Epic Productions, across development and field production. A relationship builder and former elite runner, he keeps teams and partners aligned to get ambitious, adventure-driven films made, drawn to stories that support healing.

Kinez Riza
Sees it as art

Kinez Riza

Indonesian artist and documentarian present at the excavation; interprets the story on its own cultural terms.

03
Visualskies

The spatial-capture studio rebuilding the cave, and its 31,000-year-old world, from light.

LiDAR · CGI · World-building
Joe Steel
Rebuilds the world

Joe Steel · Visualskies

LiDAR and CGI lead, with five years scanning beside Albert on Lost Cities, and founder of a London spatial-capture studio that fuses terrestrial LiDAR, drone photogrammetry, and Unreal Engine into millimetre-accurate photoreal 3D. The same pipeline that preserves the real cave rebuilds the lost world around it.

NapoleonHouse of the DragonProject Hail MaryLost Cities with Albert Lin
Featured Worldwide

A discovery that made headlines around the world.

"…major implications for our understanding of the history of medicine."
Dr Tim Ryan Maloney, lead author (Griffith University)
Support · Partnership
Help carry a 31,000-year-old story of care into the future.

With strong interest from the National Geographic Society, and a proposal currently under review, TEBO 1 spans film, immersive technology, science, and conservation. We are looking for partners to help build it.

An Epic Productions project, in collaboration with Prof. Maxime Aubert, Visualskies, and National Geographic
Image Credits

Skeletal and amputation imagery: Maloney et al., Nature (2022). Field, cave, rock-art, and wildlife photography courtesy of the Liang Tebo discovery and Sangkulirang–Mangkalihat rock-art research teams (photographers including Dr Tim Ryan Maloney, Dr India Ella Dilkes-Hall, Dr. Melandri Vlok, and Kinez Riza). Reconstructions of the deep past, cinematic frames, exhibition concepts, and LiDAR visuals are AI-generated concept art, created for TEBO 1 with Google Gemini 3 Pro Image (“Nano Banana Pro”) and Imagen, and are illustrative. Portrait of Dr. Lin courtesy of National Geographic (Lost Cities); portrait of Dr India Ella Dilkes-Hall courtesy of The University of Western Australia. Full per-image credits available on request.