On Malaysia’s Penang Island, conservationist Yap Jo Leen is turning old fire hoses into lifesaving bridges that help endangered monkeys cross busy roads in residential areas. The idea took root after she witnessed a female dusky langur and her infant get struck by a vehicle in 2016, Yap told Mongabay’s Phil Jacobson and AFP’s Isabelle Leong in a joint interview.
Dusky langurs (Trachypithecus obscurus) are small primates with dark gray to blackish fur, distinct large white patches around their eyes, and white fur around their mouth. The species is considered endangered on the IUCN Red List, according to the latest assessment, done in 2015.
Yap said that in 2016, as a postgraduate student, she started following a family of dusky langurs that included an individual she called Ah Lai. Over the next year, she recorded several instances of the langurs trying to cross a busy road. People living in the residential areas also reported that dusky langurs and macaques frequently made road crossings. Since 2019, Yap’s organization, the Langur Project Penang (LPP), has installed three artificial canopy bridges to help the langurs cross roads safely. The bridges are all made from repurposed fire hoses donated by local fire departments.
