because i love the thing what you do ♪ ♪ baby i got love what you do what you do sugar what you do what you doing tonight ♪ ♪ sugar what you doing what you doing tonight ♪ ♪ sugar what you doing what you doing tonight ♪ ♪ sugar what you doing what you doing tonight ♪ ♪ sugar what you doing what you're doing tonight ♪ sugar what you doing ♪ what you doing what you doing tonight ♪ ♪ and baby i don't know what time but i know i'm send my love down the line baby loving you like the live loving ♪ ♪ my loving my love ain't nothing that you seen before ♪ yeah my love and the nothing love ain't love ain't love ain't love love love love love love ♪ ♪ my love ain't nothing like you've seen before ♪ love ain't love ain't love ain't

love love love love love love ♪ ♪ love love love love love love ain't love ain't nothing that you seen before ♪ ♪ love ain't nothing that you seen before ♪ [ cheers and applause ] >> jimmy: that was great. thank you, reggie. reggie watts, everybody. check out his youtube channel. see more of the social music experiment. thanks again. thanks to mark ruffalo and raymond and kevin. apologies to matt damon. we ran out of time. thanks for watching. "nightline" is next. good night. [ cheers and applause ] ♪

tonight on "nightline," into the teeth of nature's wrath. these storm chasers run into weather that makes others run for cover. we go inside a heroic and deadly profession. elusive night hunters in danger of becoming prey. tonight a man who the is dedicating his life to saving the majestic snow leopard. what does sex have to do with michael douglas' throat cancer? it's the debate that has everyone talking. keep it right

from new york city this is "nightline" with bill weir. >> some dogs like to stick their heads a up of car windows at 80 miles an hour and some like to skinny dip in thunderstorms and some meteorologists like to get as close as they can to monster tornados. but after the loss of three storm chasers in oklahoma chalking their exploits up to adrenaline addiction seems unfair as ginger zee tells us the men were driven by life saving science and even the most cautious professional sometimes is no match for mother nature. >> a large tornado right there. >> horizontal. >> oh, god. >> get down! duck down!

>> reporter: it was a cruel twist the second deadly storm to tear through oklahoma in just 11 days. in its wake 18 dead among them six children and three scientists, tim samaras, his son paul and their colleague carl young. is it a loss that has shocked the meteorologist community. before they set out on friday night, tim spoke with msnbc and gave this premonition. >> the ingredients are coming together for a volatile day. >> reporter: in the aftermath of the storm, samaras was found dead in his car and the rest of the team sucked into the tornado's 165-mile-an-hour winds. storm chasers are a special breed of scientists. when everyone else is driving in the other direction they hurl themselves into the heart of the storm.

they say their mission is to better understand nature's destructive and deadly force. but this tragedy has staken the storm chasing community to its core and left many wondering how it could have happened to this meteorological hero. >> waking up to that news is horrifying. >> reporter: reed timer was in oklahoma and knew tim and paul well. they worked together on the show "storm chasers". >> there is something that doesn't make sense. he is always in control and safe and it doesn't make sense. >> reporter: tim was a pioneer in the field who devised technology that helps us measure and predict tornados. his quest to learn and inform inspired him to give chase. >> that was huge. >> reporter: i had the honor of

joining tim to study his other love, lightning. >> look at that. that was beautiful. >> the problem is, tim, just get in your car and park up next to thunder and you're in. it's not that easy. sometimes it's almost as difficult chasing a tornado as a good lightning storm. >> we're going to see the kahuna? >> reporter: tim built this ultra high speed camera to capture the birth of a lightning strike. >> there are 82 cameras taking one picture of lightning in one microseconds steps of time. >> reporter: critics said it was impossible. >> i'm not going to give up until this is done. especially the nay sayers say it can't be done. that drives me harder. >> reporter: before he left that day his son paul joined him on the chase. he was a new addition to the

team who was eager to learn the family business. we covered four states, 800 miles with pop and drop disappointing storms. >> this storm had several lightning strikes about five minutes apart. hardly worth firing the equipment over. >> if rainbow chasing were the goal we did it. >> the f-5 in rainbows. >> reporter: but as dark settled in we got lucky. due north a classic thunderstorm bursting with lightning. >> oh, man. >> it is happening. is it going to come right now. >> cg. that is 12:00. >> reporter: and with paul on watch and kim managing the camera they got a beautiful image. >> the first one hits the ground and the return stroke. >> oh, my god. >> reporter: studying lightning and studying tornados are one of the final frontiers in

meteorology. you have to get up close and collect imagery. maybe a computer prediction model can tell you how much lightning a thunderstorm can generate. >> reporter: is it that philosophy to get close to storms that drives meteorologists like us to keep chasing despite the risk. but now some say tornado alley has an increasing number of untrained storm chasers. they have been storm chasing traffic jams in the past. that might have been the case friday night. >> i think it's the amateur storm chasers that cause more of an issue. we have a lot of people that need to be out there, the first responders, news organizations and legitimate storm chasers. >> reporter: but storm chasing scientists aren't just before the thrill, in 2007 timer captured this breakthrough video

in alice county oklahoma and freeze it right there those are smaller tornados inside the bigger tornado. before this video signists suspected they exist but had no proof. and then there was the turtle probe. in 2003 it measured the biggest pressure drop in the heart of a tornado, valuable data for a generation of engineers. >> his goal was saving lives through the technology he developed. >> reporter: jim samaras takes solace that his brother and nephew and their colleague died doing what they loved. >> he gave his life for others. >> look at that. that was beautiful. >> reporter: for tim, it was a wide-eyed enthusiastic kind of passion that fuelled every chase. >> i don't know how many storms i have seen in my lifetime. but every one of them i still get pretty excited. the little boy in me wants to

come out here and just watch and stare. >> reporter: for "nightline" i'm ginger zee. >> coming up next, a great hunter becomes the hunted. inside the quest to save the elusive snow leopard. [ lighter flicking ] [ male announcer ] you've reached the age where giving up isn't who you are. ♪ this is the age of knowing how to make things happen. so, why let erectile dysfunction get in your way? talk to your doctor about viagra. 20 million men already have. 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 long-term injury, seek immediate medical help for an erection lasting more than four hours. stop taking viagra and call your doctor right away

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. if you want to see a snow leopard visit a zoo in san francisco or philly or st. louis but if you want to see one in

the wild, quit your job and spend the next 20 years prepared to wait. the most elusive cat on the planet is among the rarest. but dan harris got a chance to pursue one of these creatures with a man determined to keep them from disappearing altogether. >> it's the middle of the night on the edge of the earth. >> don't walk in front of me. >> reporter: and these men have in their sights one of the most elusive animals on the planet, the snow leopard. this is the culmination of a week's long hunt led by this man, tom mccarthy who dedicated his life to saving the snow leopard. >> they are almost mystical. that's why so many people call them the ghosts of the mountains. >> reporter: mccarthy gave rare access as he and his team tried to track down a specific cat, a

nine-year-old male who seems to have lived just as many lives. >> he is a dominant male. he has a scarred up face. >> reporter: this fight is playing out in the gobi desert. 40 below zero in winter and 120 degrees in summer. here, at least, the endangered snow leopard is still king. fewer than 4,000 are thought to be left in the wild. but two dozen are living here in the gobi. mccarthy and his team have managed to trap the cat seven times, each time fitting the cat with a radio collar. >> once we place this on the katt will pinpoint where that cat is on the ground. >> reporter: it will tell them how far the cats roam and most importantly how they raise their young.

but learning about the snow leopards is not without controversy. they have to set snares that loop around the cat's leg and trap them until a team arrives. a dart is shot at the cat with chemicals that could kill a human in a matter of minutes. they put the cat to sleep temporarily. they are weighed and collared before slowly coming back to. >> we wish there was a way to get all the information we need without having to do this. but in reality there is no other way. >> reporter: on this trip tom and his team have to set new traps to catch the cat again and very soon. the collars are designed to fall off after 18 months and the cat will lose his any day now. >> we have 13 snares out there and they have managed to avoid them for over a week. >> reporter: the few thousand survives snow leopards are in the most remote places on earth

like in pakistan where a camera crew got this footage of a leopard chasing a mountain goat down a steep cliff. they rarely miss when they attack but this time the goat got lucky. in india i got an opportunity to get close to one of these cats during feeding time. >> i have seen a lot of animals in the wild and this is one of the most beautiful animals i have ever seen. >> reporter: we watched as this big graceful cat snatched up its raw meat while never letting us out of his sight. we can touch him? it's safe? you're not scared to do that? >> we're close. >> reporter: in the gobi desert, the team pinpointed the cat's location. >> he is just around that corner. we want to go up in that dip in the hill there.

>> reporter: then they discover why he's here. he has brought down an ibex a wild goat three times his size. >> he height be around the corner. >> reporter: despite his ability to kill there is no case of a snow leopard attacking a human but that has not stopped humans from killing them. >> they share the mountains with poor no maddic herding people. when snow leopards come in and take one the herders want to retaliate. >> reporter: so there are programs not to kill the cats. their crafts are sold in american zoos. this woman made 400 u.s. dollars last year, a small fortune for anyone living here. convincing villagers not to kill the leopards is the easy part. catching one is a much different challenge. >> he is a lucky cat.

>> it shows you how elusive they are. and with everything we know about them with all the technology. we know where they are at day-to-day, you cannot readdict when they will walk by a certain spot. >> reporter: but a few nights later the cat's luck finally runs out. the dart puts him to sleep but only temporarily. the team has just minutes to collect blood samples and do other tests. the radio collar is replaced and now it is time to bring the cat back to. within minutes the big cat will be back in the wild, beaming valuable information to the researchers, information that one day could save him and his species. for "nightline" this is dan harris. >> gorgeous animal. thanks to dan harris and coming up next, a pint-sized diva

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plus salad and unlimited cheddar bay biscuits. combine any 2 for just $12.99. [ stewart ] for the seaside mix & match, we're really mixing it up. there's just so many combinations to try. i'm stewart harrington, red lobster line cook, and i sea food differently.

so maybe you didn't grab the morning paper today and work was too busy to do recreational browsing. never fear. we are here to fill you in with another edition of the feed frenzy. it's been a big week for movie star michael douglas. first he won praise of liberace. >> i love to give people a good time. >> but then he gave an interview and said that the type of throat cancer he beat is not caused by drinking or smoking but oral sex. without wanting to get too specific this particular cancer is caughted by hpv which comes about from cunnilingus.

among those harmed at the boston bombings is erica. she is the last of the tragedy's living victims to return home tonight. >> i'm excited to hug my family and see my kids. if you are going to rocket to fame do it in a tutu singing "superbass" that is how sofia grace burst on the scene and then the daytime talk shows took notice and now she is a ten-year-old. time for the auto tune and the pink cadillac with an original called "girls just got to have

fun". >> maybe early to pick out a grammy tutu but the video has 2 million views. >> i remember when she just sang for the love of the music. thank you for watching abc news, tune in to gma tomorrow coverage of the wildfires now sweeping through the western u.s. and the latest on a former marine kidnapped in mexico. we are online on abcnews.com. good night, everybody. see you back here tomorrow.