In the Amazon, animals are being illegally captured and held in captivity to lure in tourists that might want to snap a sweet selfie with a sloth or a squirrel monkey. A report published in October by the Nature Conservation detailed the harmful consequences of wildlife ecotourism, pointing out that this practice is not only illegal, but deadly for the animals captured to entice sightseers. And it's a practice that has been well-documented on Instagram - there are currently thousands of photos under the #slothselfie hashtag alone. But this week Instagram has decided to inform its millions of users that all that's cute isn't necessarily wholesome.