an engine can you confirm [inaudible] is optional south africa has lost over a third of its femmes yanxi to you to water. as the drugs become more severe. i'm the bulloles try and faers like thomas aoing to need a radical solution. professor. at the university of cape town is hoping to provide just. joe it's research focuses on a kind of plant it's an extraordinary properties. and she's ideally situated because one type grows wild in the hills just behind the university campus. this is it looks great doesn't it does but it's not it's actually it's dry just lost all its water. and it's cold it's a front into very protective kind of way how long can it survive like this -- months to use depending on species. and the moment it rains this thing rehydrate within two hour. within two hours the is it up to you. a good one species we kept them drive for ten years. five hours later they were lost. i'm trying to unlock the secrets of how these plants connection lose. all that amount of water and not die so once you understand these kinds better and unlock the secrets. what do you do with those? i