don't don't don't ♪ this is "nightline." >> is silicon valley a buys' club? it's the $16 million lawsuit that's got the tech world in an uproar. tonight, ellen powell opens up to katie couric about what she considers the bro culture at her former firm. revealing the battle may not be over. the pearl of africa. it's one of the last places on earth where you can see these magnificent creatures. back in action after poachers nearly killed them all. now we're journeying into the wild to explore the new threat. and it's destiny. they're back. beyonce's reunion with her former crew for a surprise performance as fans say yes. ♪ say yes ♪ >> after ten years could they finally be planning a new album

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'r good evening. thanks for joining us. tonight, one woman is taking on gender discrimination in the work place with a $16 million lawsuit.

ellen powell says she was denied promotion because she couldn't break into the boys' club of the tech world. but her former company says she just didn't deserve it. now she's opening up to our colleague and yahoo! global anchor katie couric about why her fight to level the playing field isn't really personal at all. >> reporter: hbo's "silicon valley" is set in a world that feels more like a frat house than a high-staked corporate jungle. >> yes, a thousand times yes! >> reporter: it was this culture, seemingly glorified onscreen that was under examination when 45-year-old ellen powell filed a $60 million gender discrimination suit against her former employer kliner perkins caufield and byers, a venture capital firm that has backed google twitter, and amazon. >> you've got people who are used to not following rules and they don't know where the boundaries for behavior are.

it works for them in one aspect of their careers. >> reporter: the lawsuit claimed among other allegations that there were unwanted sexual advances in the workplace. retaliation against her after ending an affair with a married co-worker. and uncomfortable conversation about pornography. >> do you think the free-wheeling, write the rules as you go along, kind of disruptive culture of a lot of tech firms, that while they may unleash creativity do you think that environment can conversely lead to bad behavior in the workplace? >> they take risks and they build product and people like and it they get rewarded for it. so it's natural for them to bring it into other areas as well. >> reporter: the company claims it wasn't a boys' club that got pao fired, but poor performance. a sense of entitlement and not being a team player. pao disagrees and claims she didn't make senior partner because she's a woman. >> a woman is assumed to be the assistant, the junior person.

it's just these little things that add up. they call it the death by a thousand cuts and you're just constantly trying to get that equal playing field but being taken out of it step by step. >> reporter: she says she was often left out of social engagements which brought her male colleagues closer because, as pao alleges one colleague said, "women kill the buzz." >> let's talk about the sort of off-hour social activities. like dinners or ski trips or golf outings. is that where a lot of the business is actually done? where a lot of the relationships are actually built and established? and how does that affect people who are maybe excluded from those activities? >> you're forming closer relationships, you're having discussions about business in these different events. and you may be actually resolving problems or getting somebody to say, okay i want to do this transaction, i want to have this project move forward.

>> reporter: her trial played out like a real-life soap opera set in silicon valley. the details of her marriage to wall street executive buddy fletcher put under a microscope. he sued the board of the dakota a tony new york city apartment building where john lennon once lived, for racial discrimination after it didn't approve the purchase of an additional apartment. the board claims it had nothing to do with race but alleged financial troubles. fletcher declined comment for "nightline's" story. >> some have questioned the timing and motivation of your whole case your husband was having legal and financial troubles, including a bankruptcy surrounding the hedge fund he ran. some stories have suggested that he might be the driving force behind this. others have said he warned you this would ruin your career. how would you describe his role in all this? >> i can't talk about the case and i would rather not talk about my husband. >> do you think in some ways

even if you can't discuss it, it's relevant? >> i think this is a really hard issue. and people are very comfortable attacking the person who raises these issues with whatever they can find. and it's often not very pretty. >> in the end, a jury of six men and six women sided with pao's former employer. >> when it comes to your situation, people have said you know, there was no legal merit to your complaints. and is this something that can be proven legally? in other words, are there often subtle examples of this that may not be illegal, but they may be inappropriate or they may create an environment that is not helpful to women and minorities? >> so i don't really want to talk about the legalities of my case or general -- i think people have to think about what is fair, what is right. are women succeeding at the rates they should be?

are minorities succeeding at the rates they should be? if you look at the numbers and hear people's experiences, the answer is no. >> reporter: despite receiving fan mail and messages of support from around the world, pao's lawsuit had its critics. >> the idea that she was highly qualified and still fired just does not make sense. >> reporter: heather mcdonald wrote a scathing op ed in "the wall street journal" about pao's case. >> in fact, ellen pao was given advantages and a leg up that male comparable employees at kliner perkins were not given. >> some of those negative comments and some of the critics i think might say that women play the gender card when the truth is they just aren't that good. so when people accuse you of just, hey, she couldn't cut it and she's just crying foul regarding gender. what's your response to that? >> i can't really talk about my

case. so i can tell you that it's from a broader perspective, it's a harder issue for people to really confront. it's either society has this problem and it's hard to fix, or this woman has a problem and let's just ignore it. >> reporter: pao may have lost this battle but she's not raising a white flag yet in her case against kliner. >> is the road ending here for you in terms of your legal recourse? where does that stand? >> we are not talking about it. we're still in the midst of making some decisions. >> about whether you will in fact appeal the case? >> yes. and we're not talking about it. >> our thanks to katie couric. check out the full interview on yahoo!news. next we journey deep into the african wild where one national park is facing a new threat. later on "nightline" the surprise performance that has fans jumping, jumping for joy over rumors about a destiny's

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we're about did take you on a spectacular journey deep into the heart of africa where one national park is grounds for fierce battles. not just between predators likely ons and their prey. there are oil companies with their own plans for the natural paradise. while many are optimistic there are still those who fear the park's possible ruin. here's abc's gloria riviera. >> reporter: this corner of northern uganda, where the river

nile cuts through lush rain forest and golden savannah, is known as the pearl of africa. a nickname proudly reclaimed by mercy falls national park even after decades embroiled in environmental crisis. it's been a long seven-hour car ride across two continents. it is not an easy place to get to. but on the horizon, a creeping new challenge. one that again threatens the park and its wildlife. clouding its future in uncertainty. >> are you excited to be here? >> very excited. >> reporter: we've traveled here with shabani. >> i'm resting up to be excited. >> we're seeing the nile. it's amazing to see the nile. >> reporter: she's a wild-expert and national geographic explorer born and raised in neighboring kenya. >> yeah, there they are, coming out of the water. >> rrr! we're speaking hippo.

>> reporter: she's helping explore how this delicate ecosystem is returning from the brink. >> you're jumping out of your skin to get out. >> reporter: despite the wait she isn't disappointed. a special sighting right away. >> these are endangered. >> reporter: the rare rothschild giraffe giraffe. >> there's only about 1,000 left in the world. >> reporter: just one of the many vulnerable species that calls this home, including the elusive specialty, the african lion. >> our guide george says this area is known to be a breeding ground for big cats. that's what we're looking for. >> it's like looking for a needle in a hay stack. literally, lions can be anywhere in this bush. >> reporter: after scanning our surroundings, george spots what we're looking for. >> there there, there he is there he is, yeah. >> reporter: two lions napping in the shade.

>> took to the left. >> reporter: much more interested in his companion. they seek out some privacy in the tall grass. >> they can mate every 20 to 40 minutes when they're in peak time for mating. >> she looks exhausted. >> he's done. >> this is as good as it gets. >> reporter: this pairing and the cub it may produce points to a bright future here when it was almost lost forever. during the brutal and violent reign of former president iddy idi amin, the park became lawless. >> hippos and buffaloes, up to 95% was lost. >> 95% during that time? >> lost due to poaching. >> due to poaching? >> reporter: he saw it firsthand. he now manages the national park

for the ugandan wildlife authority. >> oh my lord. look at this. this is just -- this is a container full of poaching equipment. >> put it on the neck, squeeze like a hangman. this is like a land mine. >> reporter: since tom took over things have started to change. >> two years ago, we were getting when one patrolman would come back with 50. >> 50? >> but now you can come back with none. that means the anti-poaching efforts is paying off. >> reporter: in part with the support of groups like the uganda conservation foundation. >> we've managed to get rid of over 8,000 snares in one year. >> reporter: michael works closely with the uwa to ensure pictures like these, filmed by national geographic for a special about the nile images

of elephants and lions caught in snares, become a thing of the past. >> after 30, 40 years of real trouble, i mean you really can't get much more trouble than the idi amin era then joseph coney, is now recovering. it's one of the most spectacular, heartwarming stories. >> reporter: driving through the park today this troubled past is nearly invisible. signs of a future threat are hidden in plain sight. there are oil wells in this park? >> yeah. >> reporter: the promise of a fortune. locked underground, drawing major international oil companies to the region. >> what we're seeing here, pristine, untouched park could change dramatically? >> we don't know. maybe. they are promising that they will do their best to make sure that the impact is minimized. this is how it looks at the moment. >> reporter: most of the construction in the park so far just for oil exploration, has been temporarily restored. >> we are looking at one of the tracks leading to the wells.

>> you can tell because all of those plants are sort of in rows. >> exactly. >> if you can see that behind me, there's a darker patch of grass over there. and that's where they've done some exploratory drilling for oil. >> reporter: when development moves ahead as planned the wells will be impossible to conceal and the environmental impact impossible to predict. >> when you first heard that oil exploration would be done in the park, what was your reaction? >> i think i was like, oh my god. i thought it was probably some -- it was going to be very bad. >> reporter: those fears have faded, replaced by optimism. >> you think the two, conservation and oil can coexist? >> we want it to coexist. we want it -- we are doing everything possible to make it coexist. >> it's a paradise we have to take very good care of. >> reporter: a message echoed in the corporate videos of the oil joint. >> this is a big budget.

the expenditure will be the size of the gdp of the country. >> reporter: promising careful oversight and very real potential for the local economy. >> once we go in we need to ensure that we have left the environment pretty much the way that we saw it in the first place. >> reporter: but he believes the oil companies should leave the park not just as they found it but better off. >> the challenge is can we get those companies and the government to get that to happen? i've not seen evidence of it yet. >> reporter: a discovery that could be uganda's economic salvation or some fear its ecological ruin. either way the stakes couldn't be higher. >> you want your grandchildren to have the most incredible opportunity one day to go and see one of the most staggeringly beautiful countries in the world. we must save it. >> reporter: for "nightline," gloria riviera in murchison falls. >> "destination" wild, sunday nights on nat geo wild. could destiny's child really be back together again? say yes. there may be reason to believe

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you could scratch your way to instant winning. the pennsylvania lottery. bring your dreams to life. you know before beyonce ruled the world, destiny's child took r&b by storm. last night the ladies gave fans a reason to rejoice with the surprise performance. it was definitely fun while it lasted. and now some are speculating the reunion was just a taste of thins to come. ♪ >> reporter: they're the trio that brought the world hits like "survivor."

"say my name." who could forget "bootylicious." but could destiny's child be bringing back the music? "the daily mail" reporting after ten years of being apart, the group is planning to reunite. it wouldn't be the first time destiny's child has thone a curveball. beyonce, kelly roland, and kelly williams surprising the audience at the stellar gospel music awards which aired last night. ♪ singing williams' new song "say yes." and two years ago at the super bowl. the group was together again. ♪ all the single ladies ♪ strutting their stuff to "single ladies." michelle told entertainment tonight destiny's child loves the unexpected. >> we don't want people to know. you know? and we love having those moments where we can rehearse and then

just say ah-ha! we're back together! >> but she didn't talk about a tour or album. one thing is certain, reunion tours can be a license to print money. ♪ back street ♪ >> reporter: the back street boys brought back old hits like "everybody." ♪ >> reporter: on their 2014 tour and picked up $32.8 million. new kids on the block reunited in 2008. proving they still had the right stuff. raking in over $35 million. and just a few months back on "good morning america" -- >> we're going to go back on tour this summer. >> reporter: they announced a re-reunion tour. as for destiny's child? there are no confirmed plans for a nostalgia tour just yet. but if there's any truth to the rumors they could have crowds jumping again soon. ♪ jumping jumping ♪ >> with all that talk swirling

about destiny child's reunion, what other group would you love to see get back together? head to our "nightline" facebook page and let us know in the comments. thanks for watching abc news. tune into "good morning america" tomorrow. as always we're online at abcnews.com. good night, america. [dramatic music] ♪ ♪ >> yo! yo! yo, yo, yo! yo! [cheers and applause] thank you. welcome to the show, everybody. i'm terry crews. you may know me from brooklyn nine-nine and now i'm doing double duty as your host on millionaire!

[cheers and applause] our first contestant is not your typical lawyer. when she's not making pleas in the courtroom, she's doing plies on the ballet bar. from elgin, illinois, please welcome angela siener-williams. [cheers and applause] angela, how are you? >> hi. >> nice to see you. >> nice to see you too. >> oh, come on over here. now, i hear your plies were inspired by your grandma. >> yeah, my grandma's actually had a dance studio for 50 years. actually starting this year will be our 50th year at the studio, so she's-- she's been doing it a long time. she teaches. my mom teaches. and i help her out around the studio, and so it's a lot of fun. i love being able to share my passion with, like, the younger generation, so... >> that's great. how--what's the age of your kids that you teach? >> i have anything from 3 years old to 40, so we have a very wide range of ages, and it makes it a lot of fun because you get to see people in all their different stages of-- of dance.