Sumatran orangutan uses canopy bridge to cross road in world first, raising hopes for species

Pakpak Bharat, North Sumatra: A wild Sumatran orangutan has been recorded using a canopy rope bridge to cross a road through the jungle — a world first for the species. The landmark moment was captured on a camera trap in the Pakpak Bharat district of North Sumatra. Conservationists say the event confirms that Critically Endangered Sumatran orangutans can and will use canopy bridges to overcome forest fragmentation.

While gibbons, langurs, and macaques have previously been observed using the bridges to cross public roads, this is the first documented case involving an orangutan. “Waiting for this moment to happen for over 2 years has been excruciating, but now that it has, we’re just overjoyed,” said Hellen Buckland, CEO of the Sumatran Orangutan Society (SOS).

Pakpak Bharat lies within the West Toba landscape, home to an estimated 350 wild orangutans. Orangutans are especially vulnerable to genetic problems caused by inbreeding in small, isolated populations. The road also poses a direct threat from vehicle collisions. Researchers say that because of the species’ intelligence and social learning, bridge use could become normal behavior in the future, offering a vital tool to reconnect fragmented habitats and improve genetic health.