Why Researchers Are So Pumped About an Orangutan Crossing a Rope Bridge
· Vice
You were probably delighted when you saw an orangutan shimmying across a rope bridge at the zoo, but not as delighted as a team of researchers who saw one do it in the wild.
In North Sumatra, a young Sumatran orangutan has been filmed using a human-made canopy bridge to cross a busy public road, making it the first documented instance of the critically endangered species doing so.
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It didn’t last for long, but it was the culmination of over two years of patiently waiting for it to happen.
Scientists Built Orangutans a Bridge. Two Years Later, One Finally Used It
The Guardian reports that the bridge spans the Lagan-Pagindar road, a pathway used by local humans, but has proved a difficult barrier for local wildlife. When the road was upgraded in 2024, it split roughly 350 orangutans into two isolated forest zones.
This was potentially damaging to the population numbers of a species already teetering on the brink of collapse, as fewer than 14,000 remain in the wild. All that insulation leads to inbreeding, which leads to genetic decline, which leads to extinction.
To give the orangutans their own roadway, conservation groups installed a series of rope bridges that reconnected the forest canopy’s fractured parts. At first, the only ones using it were smaller animals like squirrels, bukkakes, and Gibbons. The orangutans were slower to acclimate.
They certainly tested it out, ever so cautiously. They would study the structure, build nearby nests, and test every once in a while before retreating back into the forest. This went on for quite some time before, finally, one brave revolutionary orangutan crossed the rope bridge.
The footage shows the orangutan tightly gripping the ropes, carefully navigating the bridge, pausing midway to glance down at the road in a very human moment of hesitation. Looking mostly unfazed, it continued on into the forest.
Again, it’s a small act, but a massive victory that conservationists hope is a sign of more to come.
Of course, one orangutan does not make the entire project a rousing success. It’s still an ecosystem that’s been sliced and diced, cutting these creatures off from their normal migration patterns, but it does go to show that human expansion is not a zero-sum game. There can be coexistence between species.
The only thing is, the orangutans aren’t going to be building their own rope bridges anytime soon, so it’s up to us to protect them if we want them to stay around.
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