Onward: Drones Overhead — Protecting Orangutans from Above

The population of orangutans in Indonesia has plummeted. But these tree-dwelling great apes can be difficult to find and count. Enter Conservation Drones, a group that flies camera-equipped drones to gather data about orangutans' whereabouts and numbers.

Learn more about Conservation Drones, and other surprising uses for drones:

Onward is a project to explore the world and share its untold stories. Hit the road with National Geographic multimedia journalists Spencer Millsap and Dan Stone at http://onward.nationalgeographic.com, or tweet them at @spono and @danenroute to join the conversation.