things evofl. and the wasps over five generations will not go to a native species.0 or 100, and maybe all of a sudden they'll move over to a native species. >> a lot of people think we'll have to develop a line of trees that are resistant to the trees. that's down the road. >> keep us posted. now. >> it may be scarce, you never know >>> after the break a win for conservationists. in the form of a great white shark off the coast in california. >> rain pryor >> everyone wants to be that thing... and i'm not that thing i'm like hello... i'm me... >> surviving a chaotic childhood >> i'm like dad... they're hookers in this house... >> ...and breaking free and following her own path >> when you come to a show of mine... someone in that audience didn't like what i just said... >> every sunday, join us for exclusive... revealing... and surprising talks with the most interesting people of our time... talk to al jazeera part of our special black history month coverage on al jazeera america [ ♪ music ♪ ] >>> hey, etch, welcome back to techknow. i'm phil torres, with marr itema

things evofl. and the wasps over five generations will not go to a native species.0 or 100, and maybe all of a sudden they'll move over to a native species. >> a lot of people think we'll have to develop a line of trees that are resistant to the trees. that's down the road. >> keep us posted. now. >> it may be scarce, you never know >>> after the break a win for conservationists. in the form of a great white shark off the coast in california. >> al jazeera america presents borderland's dramatic conclusion >> no one's prepared for this journey. >> our teams experience the heart breaking desperation >> we're all following stories of people that have died in the desert. >> and the importance... >> experiencing it, has changed me completely... >> of the lives that were lost in the desert >> this is the most dangerous part of your trip... >> an emotional finale you can't miss... >> we got be here to tell the story. >> the final journey borderland only on al jazeera america >> tomorrow on techknow. what if there was a miracle >> grace's stem cells are in this box >> that

things evofl. and the wasps over five generations will not go to a native species.0 or 100, and maybe all of a sudden they'll move over to a native species. >> a lot of people think we'll have to develop a line of trees that are resistant to the trees. that's down the road. >> keep us posted. now. >> it may be scarce, you never know >>> after the break a win for conservationists. in the form of a great white shark off the coast in california. >> sunday night. >> 140 world leaders will take the podium. >> get the full story. >> there is real disunity in the security council. >> about issues that impact your world. >> infectious diseases are a major threat to health. >> "the week ahead". sunday 8:30 eastern. only on al jazeera america. [ ♪ music ♪ ] >>> hey, etch, welcome back to techknow. i'm phil torres, with marr itema and costa. you and i had the opportunity to get up and personal with a creature that most people don't want to be up close and personnel with - sharks. both of us walked away from the experience with a love for the beasts. that's one of the reasons w