the camp owned by amazon explorer peter goreman the man who claims credit for bringing sapo to the uniteds. >> some how seemed to explode on the scene. the emerging stages of a small but legitimate phenomenon. the next morning, all most time for us to try for ourselves. but first, the toxins must be extracted. >> just have these four sticks. open up the legs with the strings. it starts sa kreegt iecreting t isn't. i get quality time with the frog. before he is released. cold, sticky, wet. hold it. not harmful. unless you how it and put it in your eyes or mouth. after making it all the way here. i can't back down. i will feel it. blood is rushing to my eyes. i think i might need to throw up. the question is why do people do this to themselves. i'm going to find out after how i feel. a few hours later, still a little lightheaded. but also, full of energy. all most become to there mall. miracle medicine, maybe not. but the magic and wonder of the amazon, undeniable. for "nightline," i'm maryanne van zeller in peru. >> so interesting. >> that's it. the magic and wonder is what he got at the e