Just by using an app, tourists or researchers in Southeast Asia can help save endangered animals from poachers. The app is called Wildlife Witness, and it allows anyone who sees people engaged in suspicious hunting, trapping, or sales activities to take a photo and pin it to a virtual map, which gets forwarded to various wildlife authorities. Since it’s release in May, the app has been downloaded over 10,000 times, leading to over a thousand reports of suspicious activity and at least 500 arrests.