Indonesia orang-utan uses canopy bridge to cross road
Conservationists say it’s the first time a Sumatran orangutan has been filmed using a man-made canopy bridge crossing a public road on the Indonesian island of Sumatra.
Rapid development is shrinking forest habitats for critically endangered species, and deadly conflicts with humans are increasing.
In the brief scene, captured by a motion-sensitive camera, a young Sumatran orangutan is seen standing at the edge of the forest, consciously grasping a rope and stepping into the open air.
He stopped halfway and took a look at the road below.
He crossed the street a few minutes later.
Environmentalists said this was the first documented case of a Sumatran orangutan using an artificial canopy bridge to cross a public road dividing its habitat.
“This is the moment we’ve been waiting for,” Erwin Alamsyah Siregar, executive director of Indonesian conservation group Tangguh Hutan Khatulistiwa, or TaHuKah, told The Associated Press.
“We are so grateful that the canopy here benefits orangutan conservation efforts.”
He said the bridge spans the Lagan-Pagindar road in the Pakpak Bharat region, a vital corridor connecting remote villages to schools, healthcare and government services.
But the road also passes directly through prime orangutan habitat, separating the estimated 350 orangutans into two isolated forest areas: Siranggas Wildlife Sanctuary and Sikulaping Reserve Forest.
When the road was improved in 2024, the gap in the forest canopy widened and natural passages for tree-dwelling wildlife were eliminated.
“Improvement was necessary for the people,” Siregar said.
“But without intervention the orangutans would have been stuck on both sides.”
Working with the Sumatran Orangutan Society (SOS) and local and Indonesian government agencies, TaHuKah proposed a simple solution: rope bridges suspended between trees that allow tree-dwelling animals to pass over traffic.
After examining orangutan nests, forest cover and animal movements, five canopy bridges were installed, each with a camera trap.
The structures were designed to support the orangutan’s weight; This is no small feat for the world’s largest tree-dwelling mammal.
The program is closely monitored, with camera traps on every bridge and regular patrols to prevent forest encroachment.
Conservationists hope more orangutans will follow the early lead.
They waited two years for the first orangutan to cross the bridge.
Before this success, only smaller animals used it.
Camera traps recorded squirrels, langur monkeys and macaques, followed by gibbons – a hopeful sign.
The orangutan’s approach was slower; It was building nests near the bridge, staying on its edges and testing the ropes over time.
“They are observing,” Siregar said.
“They don’t rush. They watch, they test, they retreat. They only move when they’re sure it’s safe.”
Then one day, he crossed completely; This is a first not only for Sumatra but also, according to conservationists, for the species on a public road in the entire world.
