Scientists trying to protect the endangered Sumatran orangutan have adopted an unusual tool for their work: Drones.
These unmanned aerial vehicles are a quick and inexpensive way to monitor orangutans and their habitat.
The World's science correspondent Rhitu Chatterjee explains the technology to The World's Marco Werman.
Sumatran Orangutan (Photo: Flickr The Evo Guy)
Sumatran Orangutan (Photo: Flickr Creative Commons: The Evo Man)