Story perspectives

Young Orangutan Crosses New Canopy Bridge, Restores Genetic Link

4/25/2026

Summary

Orangutan Crosses Bridge

A young male Sumatran orangutan crossed a canopy bridge over the Lagan-Pagindar road.
Bridge built in 2024 by Tangguh Hutan Khatulistiwa (TaHuKah) and the Sumatran Orangutan Society, linking Siranggas reserve with Sikulaping forest.
The road had split roughly 350 orangutans into two groups, creating a risk of genetic bottlenecks.
Helen Buckland, chief executive of the Sumatran Orangutan Society, said the bridge provides a crucial genetic lifeline.

Summary

Orangutan Split

A 10-meter rope bridge built with 200 m of rope in four to five days enabled the first Sumatran orangutan crossing and is used by plantain squirrels, black giant squirrels, long-tailed macaques, black Sumatran langurs and gibbons.
The 2023 Lagan-Pagindar road upgrade links remote villages to schools and hospitals, illustrating a development-wildlife trade-off.
The 2023 road widening created a canopy gap that divided the ~350 orangutan population into two isolated groups.

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Orangutan Crosses Bridge

A young male Sumatran orangutan crossed a canopy bridge over the Lagan-Pagindar road.
Bridge built in 2024 by Tangguh Hutan Khatulistiwa (TaHuKah) and the Sumatran Orangutan Society, linking Siranggas reserve with Sikulaping forest.
The road had split roughly 350 orangutans into two groups, creating a risk of genetic bottlenecks.
Helen Buckland, chief executive of the Sumatran Orangutan Society, said the bridge provides a crucial genetic lifeline.

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