line of cars. >> only one on this track is ryan dungy. despite the accolades and how talented ryan is, much to many people's surprise, ryan announced his retirement from the sport earlier this year. he said, i'm done. i've come, i've conquered, done what i want to do, and he's also going out, essentially, kind of on top and uninjured, as well. this video put together by red bull basically just honoring one of the greats. >> my career wasn't perfect. but that's what made it amazing. ♪ >> there's a bit of a deep sea medical mystery on the coasts of india. check this out. 45 spotted dolphins beached themselves, so villagers and forestry officials worked together to put them back out in the water, but a day later the dolphins came back to shore. there were 45 of them. four didn't make it, but it's a mystery as to why this happened. researchers and biologists are saying this is really, really unusual because these dolphins don't swim close to shore, they are deep sea dolphins. >> oftentimes they do this when they want to end it. >> got to be fr

>> the seat of ryan dungy. he is incredibly talented. been racing in supercross and motocross for seven years. seven-time ama champion, in total has won 80 different races. the guy grew up in minnesota and this is called hometown. basically bringing him back to his roots. >> i didn't know much. i just knew one thing, put in the work and see results. >> it's his very own field of dreams. >> i love the way they carved this track into the kcornfield. >> the video is also pretty. >> they built the track. do people come? that's what i want to see at the end of the show. line of cars. >> only one on this track is ryan dungy. despite the accolades and how talented ryan is, much to many people's surprise, ryan announced his retirement from the sport earlier this year. he said, i'm done. i've come, i've conquered, done what i want to do, and he's also going out, essentially, kind of on top and uninjured, as well. this video put together by red bull basically just honoring one of the greats. >> my career wasn't perfect. but that's what made it ♪ >

. >> super cross champ ryan dungy returns to his home turf. >> he is incredibly talented. >> how a cross roads in his life led him back to the corn field. put your eyes to the test with octopus who can morph. >> and look like what they are not. >> the 360-degree glimpse into one of nature's great mysteries. and when your ex's new girlfriend happens to be -- see if playing it cool is the right thing to do. >> what do you do? >> i'm a model. >> what? >> not just a model, a supermodel. >> i hate you, i hate you, i hate you. >> circus acts are always so elaborate, and this one in brazil is no different. they take center stage and he puts his partner down and it lifts him up. now she holds on to his ankles and she begins to twirl. >> oh, gosh. it wasn't their fault. the rigging failed. >> that's exactly what happened. something went wrong and it fell apart. >> when they fell, that must have shattered her bones. >> neck first. >> they were taken to the emergency room. she suffered a fractured hip and he dislocated his arm and shoulder. >> that's horrible. >> they were released from the hospita