Breaking barriers at the barre and making history with an unprecedented promotion. But first the nightline 5. Its macys oneday sale saturday with a preview day friday. Get an extra 20 off when you spent 50 with your savings pass. Earn plenty points. If youre suffering from constipation or irregularity powders may take days to work. For gentle relief dulcalax provides gentle overnight relief. Dulcelax, designed for dependable relief. When account lead craig wilson books at laquinta. Com. He gets a ready for you alert the second his room is ready. So he knows exactly when he can settle in and practice his big pitch. And when craig gets his pitch down pat, do you know what he becomes . Great proposal lets talk more over golf great. Better yet, how about over tennis . Even better. A game changer your 2 oclock is here. Oops, hold your horses. No problem. La quinta inns suites is ready for you, so youll be ready for business. The ready for you alert, only at lq. Com. Laquinta good evening. We begin with the summer of the shark in north carolina. Just as peak beach season hits. Were satisfying a recordbreaking cluster of shark attacks. Tonight we go on the front lines with the teams trying to figure out why this is happening and how to keep people safe. Somebodys been attacked by a shark his arm is gone reporter its been a bloody summer off the coast of north carolina. Eight shark attacks in four weeks and a public caught in the jaws of a reallife shark scare. It took a pretty big chunk out of my right leg. I started punching the shark. Reporter which is why this team of scientists is engaged in urgent work. So we are baiting 50 hooks with smallsized fish that sharks are attracted to. Reporter tagging sharks. Theres one. There he is. Reporter following their movements. Hoping to understand why theyre attacking humans. Its a male shark, three feet long. This is a black nose shark. Weve tagged it with an external tag so if someone else were to catch it they could call a number and report it. Its frustrating from our perspective because people turn to us for answers. We spend our lives studying animals in the water. And when Something Like this happens, people want answers. Were not even sure what species is involved in any of the attacks. Reporter this spike in attacks began a couple of weeks ago on the same day a shark tore the arm off of a 12yearold girl and then just down the beach, another shark ripped the arm off of 16yearold hunter treshel. I saw the shark on my left arm. It was halfway up my biceps. Reporter a recordbreaking 11 shark attacks off the coasts of both north and South Carolina in just a span of weeks, has everybody here scrambling for fast answers. Its clear weve got a perfect storm under way of a variety of environmental, biological, and human factors. Reporter he says the recent cluster of attacks may be due to warmer water than usual, more people in the water, and a surge of bait fish bringing sharks closer to shore for food. And those fishermen with Close Encounters themselves like this one, pulling a sixfootlong shark out of the water. It was the biggest shark ive seen in person. Quite scary. Reporter researchers are out looking for answers on the water. The recent surge in attacks has become the subject of a vigorous and sometimes emotional debate. I dont believe fishing is actually whats bringing the sharks to the beach. So when you start to look at if there was an action i could take that would guarantee we wouldnt have this activity certainly we would do it. Reporter the beaches are still open. But in some spots police have ramped up their presence on the lookout for sharks. I dont see anything today at all. Reporter were inside the beach patrols along the 45mile coastline, and today with the Brunswick CountySheriffs Department at the site where 16yearold hunter treshel lost his arm to a shark. Ultimately we see sharks in the water and we notify people on the beach that there are sharks in the water. Its up to them to get out of the water. You know . Its just that simple. If you dont come in contact with one, they cant bite you. Reporter as we make our way out to the open water, a call comes in. A missing boy. Sixfoot swells slam against the patrol boat. Its rate rough out here. Yeah. Reporter a child could be swept away by a rip current or something else. This is the ocean crest pier. Thats where some of the one of the bites happened. Reporter we travel toward the last place the boy was seen on the beach. After about 30 minutes im on 76th with the subject and his parents, positive i. D. Nice. Reporter relief but a window into how on edge people are here. North carolina is not the First Community to deal with a shark epidemic. These people are losing their family members, their best friends. Reporter reunion island in the indian ocean had been plagued with 17 shark attacks over the past four years. Seven of them fatal. Just three months ago, a 13yearold surfer named helio canestri. Translator he loved the water, that was his element, the water. A little nervous. We are going in with bait. So theres no telling whats going to happen on the bottom. Reporter scientist Craig Oconnell is featured in the discovery channels shark week. In the upcoming episode shark island tries to get a closer look at the islands aggressive predators. Is there something unique about these sharks that we can target to keep them away from swimmers . Reporter hes been developing a system that uses strong magnets to overwhelm sharks electromagnetic senses. I have bait adjacent to these magnets, these sharks were come in for the bait at the last second get really violent aversion responses. Its a technology that will allow sharks and people to peacefully coexist in the same environment. It could be something that could potentially be used in an area such as north carolina. Reporter no comfort to those who have fallen victim so far this summer like 16yearold hunter treshel. The biggest adjustment has just been daytoday activity, honestly. Reporter the teenager who lost his arm is home recovering. He was left handed and thousand has to relearn everything. I was trying to scoop ice cream. Thats really difficult with one arm. Its a big process for everything. Reporter on this day hes meeting somebody who can relate. Paul degelder has been this before. The shark continued to shake me, basically like a dog would a rag doll. Reporter hes an Australian Navy diver and survived this attack by a bull shark seen in discoverys i escaped jaws. Paul is missing two limbs. He overcame his trauma and now studies sharks and even dives with them. Youre just up and about. Doing stuff, hang is out already. Yeah im shocked. I was in hospital for nine weeks. Youre like super human. You were a bit worse off than me, i think. Reckon youll end up getting back in the water . I think so at some point. Not that beach. Yeah, i would like to get back in the water. A couple of years time whenever youre ready, we might be able to do a shark week show together. Maybe. Maybe, ill think about it. Baby steps . Baby steps. He as remarkable kid. For much more on that encounter between hunter and paul dont miss gma first thing in the morning. Shark week airs on discovery through sunday. Up next on nightline its not hard to see why 13 Million People are fans of dude perfect. Theyve obviously got skills. But what happens when our own juju chang tries to pull off one of their tricks . I like my seafood like i like my vacations tropical. And at red lobsters island escape, i can try new dishes like the island seafood feast with crab, lobster jumbo sweet and spicy and coconut shrimp. So hurry in, itll be gone before you know it. Do you like the passaaadd . Its a good looking car. This is the model rear end event. The model year end sales event. Its year end its a rear end event. Year end, rear end check it out. Talk about turbocharging my engine. Gorgeous. What kind of car do you like . New, or many miles on it . Get a 1000 volkswagen reward card on select 2015 passat models or lease a 2015 Passat Limited Edition for 209 a month after 1000 volkswagen bonus. Ya know, viagra helps guys with erectile dysfunction get and keep an erection. Talk to your doctor about viagra. Ask your doctor if your heart is healthy enough for sex. Do not take viagra if you take nitrates for chest pain; it may cause an unsafe drop in blood pressure. Side effects include headache, flushing, upset stomach and abnormal vision. To avoid longterm injury, seek immediate medical help for an erection lasting more than four hours. Stop taking viagra and call your doctor right away if you experience a sudden decrease or loss in vision or hearing. Ask your doctor about viagra. We came in station wagons, campers, on planes to see what walt had built. Forever young and what we found was a place that was always growing, but never grew old. Forever young and now comes a celebration 60 years in the making. The disneyland diamond celebration. May you stay with dazzling, new experiences for the young may you stay and the young at heart. Forever young come remember that feeling. Forever young come feel forever young. You are about to meet the actual dudes behind the social media sensation dude perfect. Theyve made millions of fans and earned lucrative endorsement deals by pulling off seemingly impossible tricks on video yore tonight my nightline coanchor juju chang brings us another look at this burgeoning viral empire for our series social stars. Going up on a roof. Im not exactly sure why. Why am i holding this basketball . Why are these burly guys egging me on . They want me to do something that seems impossible. Okay laser shot off the roof reporter because that is exactly what they do for a living. Yes, yes reporter they call themselves dude perfect. The highflying, graphtydefying, trick shotmakinging me sa stars of the internet. With 13 million fans on facebook. Nearly 6 million subscribers on youtube. Racking up more than 750 million views. Odell beckham jr. Lets do some trick shots reporter its their testosterone testosteronefueled yet boyish cham thats attracted obsessive fans of all ages. Including my son. So i brought them along to dude perfect headquarters in texas. Immediately, they put me to work. On my own version of dudette perfect, the nightline edition. This is the nolook shot okay, i get it now this is the pool party. Reporter ive been known to be competitive. Come on, come on, come on reporter but their one ups man ship borders on fanatical. Were all super competitive. As soon as one guy does it, the others trying to top it. Reporter thats what launched their empire. Their first video, trick shot always they were college buddies, went viral. Their tricks growing more and more jaw have dropping. Over a jumbo jet. Even the goodyear blimp. Yet the skeptics seemed to grow as well. Everyone is convinced that you guys are sneakily getting these trick shots. We kind of take that as a compliment. Because, i mean, youve got to be really smart to be able to do that. We dont have that capability. Im glad they think that highly of us. Reporter they say its all real, no tricky camera edits. This is the juju shot. Reporter it really is just try, try, try, and try again. Sorry about that reporter this little golf chip took me more than a dozen tries. Which is why when they finally make the shot they celebrate like theyve just won the super bowl. There we go see all you had to do is trust me. Whats the longest its taken . Probably the slingshot. That was over a span of two full days of trying that shot. Be there yeah is this something that you mature out of . I hope not. I have a saying, trick shots are forever. Reporter and like peter pan, never growing up seems to be their plan. Even though most of them are married. And garrett is even a new dad. Do you feel like people who dont know them would look at it and say these guys theyre just immature dudes . Do you see it that way . I can see how pem would say they play for a living. I call cody and hes playing golf. After watching them do a shoot, i told cody i have so much more respect for you, i had no idea that much went into making a trick shot. How do you bring a little dude into this . I hope owen can grow up and enjoy what we do. Its just all about having fun. Reporter their wholesome, isnt that correctfree shenanigans spring from their christian values the antijackass. Youve turned away alcohol sponsorship and thats lucrative. Why . Theres things weve got to decide our audience we know is a lot younger. We get tweets from people saying, im waiting for mom or dad to get home from work so we can watch the video as a family. Reporter the familyfriendly Business Plan has made the dudes a perfect marketing phenomenon. Bringing in big money, not just from youtube but merchandising endorsements. This is our nerf edition. Reporter one estimate puts their net worth in the millions. Everybody assumes you guys are billionaires now. Give me a sense of how much money are you guys rolling in . Yeah its not billions. Youre just precipitating it right there, right . No its enough to support families and do pretty well for ourselves. We work really hard. Reporter its a welloiled machine. Attracting some bigname celebrities. Dude perfect, man. Tim mcgraw. Im Russell Wilson. Theyre genuine fans. Thats one of the most humbling things that we get to see is what we see show up and meet Russell Wilson and coach carroll, and this is awesome, lets do trick shots. They are a fan of us as much as were a fan of them. Reporter one of the signature moves, turn the tables on their guests. So noskip ball. Oh, almost. Whoa reporter which brings us back to that impossible shot off the roof. Off the roof. Oh dit it reporter nailedit. Attempt number one. But that wasnt good enough for the dudes. All we sneedneed is swish. This is for dan harris and byron pitts. All right, show dan. Reporter failure is not an option. 36 tries later yeah beautiful wonder woman reporter for nightline, im juju chang, shooting trick shots in texas. Up next on nightline, the woman quite literally changing the face of ballet. Her backstory is simply extraordinary. If youre suffering from constipation or irregularity powders may take days to work. For gentle overnight relief, try dulcolax laxative tablets. Ducolax provides gentle overnight relief, unlike miralax that can take up to 3 days. Dulcolax, designed for dependable relief. We live in a pick and choose world. Choose, choose, choose. But at bedtime . Why settle for this . Enter sleep number dont miss the final days of the lowest prices of the season. Sleepiq technology tells you how well you slept and what adjustments you can make. You like the bed soft. Hes more hardcore. So your sleep goes from good to great to wow only at a sleep number store. Dont miss the final days of the lowest prices of the season. Save 300 to 700 on selected mattress sets. Ends sunday know better sleep with sleep number. When broker chris hill stays at laquinta he fires up the free wifi with a network thats now up to 5 times faster than before so he can rapidly prepare his presentation. And when he perfects his pitch, do you know what chris can do . And that is my recommendation. Lets see if hes ready. He can swim with the sharks hes ready. La quinta inns suites take care of you, so you can take care of business. Book your next stay at lq. Com la quinta finally, a huge triumph for an unlikely ballerina. Heres abcs mara caf come poe. Reporter this is the moment Misty Copeland has been dreaming of most of her life. Promoted on to principal dancer at the american ballet theater, the highest level for a ballerina. Your dream has come true. Have you had a chance to sit with that . No. Its its something that i think every dancer when they enter into the classical ballet world, thats what you dream of being. The percentage of dancers that actually make it there are very very small. Reporter but this didnt just make her dreams come true. It made history. Copeland becoming the first africanamerican female principal in the prestigious companys 75year history. Once i got into the company, it was you know a question of is this really going to happen for me . Not only because its difficult to make it there, but as an africanamerican woman it had never been done before. So i definitely had my moments of questioning whether or not this was really the path for me. And its so surreal that its happened. Reporter by all accounts copeland is an unlikely ballerina. One of six kids being raised by a single meter she didnt start dancing until she was 13. Thats old for ballet. Her first class at the boys and girls club. She often get discouraged. Its a european art form and youre used to seeing a certain type of person as a ballerina. And i dont look like a lot of the girls around me. So i heard things about just not fitting in. Being told im too muscular im too short. Reporter her undeniable talent was quickly noticed. And then a different kind of attention. In 1998 at just 15 years old, copeland making headlines when she found herself at the center of a messy legal battle. Briefly filing for emancipation from her mother so she could live with her dance instructor and continue her intensive ballet training. I just hoped to become a famous ballerina. Reporter copeland later dropped the case and went back to live with her family. She continued training and over the years has become one of the most famous dancers in the country. On the cover of time magazine. Writing two books. Scoring more than 500,000 instagram followers and an endorsement deal with under armour. You have the wrong body for ballet ballet. And at 13 you are too old to be considered. Reporter with an online ad watched by more than 8 Million People. And she Just Announced shell be making her broadway debut in a few weeks. On the town. Her fame introducing a whole new audience to the world of ballet. How does that feel to you to know youre not just changing the stage, youre changing the audience as well. You know i never dreamed at 13 years old, living in a motel, that id be in this position. And be able to bring in so many people that never felt that they belonged. And that they were interested in classical ballet. So its just an incredible moment. Reporter for nightline, mara shall have campo, abc news new york. A huge congrats to Misty Copeland. Thank you for watching abc news tonight. As always were online 24 7 at our Nightline Facebook page and at abcnews. Com. Thanks again for watching. Good night