bend is still face a difficult battle ahead. you're watching the w news. a quick reminder of our top story. an explosion has struck the only branch linking russia to the crimean peninsula. on verified images on social media show a large blast on a section of the carriage bridge. brush in authority, say they're investigating what they're calling a truck bomb. that's the latest on d, w news. the marion evans dean. i'll be back with more headlines for you at the top of the hour for me and the news team. thanks for watching. how did she become at all hitler's favorite director? and how did he become a forgotten, sil pioneer? linearly finished, and on ode funk. a documentary about love seduction and power ice

cold passion starts october. it's on d. w, for even on you is a world, have never seen her overrun with bizarre creatures that live on and in. if sleep, part of your body is an animal is on your phrase, and we don't know very much about it. yet they are affecting us in ways we never imagined. but now, for the 1st time, we can explore this unknown. well, if we got rid of all the microbes on us and inside us, we would you and with each and every one of us is a collection of different life on the call us hi, this is life on us.

ah, you am lucy? not you? come you home to an astounding ray of fly phones. 2 some creatures hide inside to bounce. this proceed view from you. i browse their gardens fondue feet. alien tribes inhabit the jungle of your hair. tiny might banner into your face. and you host more bacteria than there is a way you and your box foreman with life. in fact, bugs are us where every day these

typical family is home to a 100 trillion hitchhikers on their skin, and inside their body. these invisible colonizers keep them healthy, sometimes make them a harvest, and even influenced their behavior. stop fighting. yet until recently, we understood very little about how microscopic residence gems have a bad reputation. we think of them is the cause of disease. but paradoxically, we couldn't survive without them. bacteria are bad. their cans are bab, all this stuff growing on me as bad. but just new kid in a majority,

those organisms are actually good for us. they're assisting us, they're not our enemies. obsession with bad bugs, left us blind to the good. but now genetic tools allow us to see what we've been missing. molecular tools, sequencing dna have allowed us to get a true picture of what organisms are there, and as a far richer picture, than we had previously appreciated via altering microorganisms. by decoding the genes of these microscopic creatures, we can reveal a new microbial world. the genetic tools are kind of like the new telescope. think of it as a geographer at might have just been studying the fields around neu, their whole career. and then somebody says, oh, by the way, we just discovered the americas and australia and nobody'd ever heard of it before . for the 1st time, we can see the my groups that live on us. and inside us it's been like

a gold rush at the moment. it really is a very, it's rolling the bag. scientists have embarked on a journey into the unexplored world of our own body. they are discovering how we are shaped and kept alive by the bugs that leaf on us does. the crust covers planet. the skin covers the body and impermeable barrier between us and invading gen. wow. but we only realize just how important it is when it's compromised. i see people's lives changed in an instant on a daily basis. the owner would is a world leading burn specialist. her struggle to save lives is all about beating pathogens. the microbes, the call was infections. we have bacteria and pathogens. all is all the time.

when you have a breeching, you skin, there's a way. and that way in is going to be there until we seal the window. so the longer the wound is, is open. the greater the risk of getting infected. so what we want to do is close that surface, seal the surface of the wound as quickly as possible, while the waves of infection keep coming over. if you waterproof, you will survive. and central to that survival is the layer of my groups that live on our skin, like the atmosphere that protects our planet, al microbes for me, shield against alien invaders. if some pathogen arrives on your skin, it's not your immune system that rises up to greet the 1st thing that greets it is this microbial layer and this, this harry, invisible cloak. but we're to these box come from

lies in it's with a baby. the womb is, is so the tree weld. but outside, with an army of microbes awaits its arrival. ah, me, you're born. you're colonized of your mother's microbes until then you can be called a 100 percent human. but after that moment, you're really just 10 percent human and 90, says micros, which is

a scientist is very, very exciting. but as a parent is terrifying, ah oh. towards the end of pregnancy, the bacteria that live in the mother's got migrate to the vagina. ready for the baby to pick them up as it slides through the birth canal with her being coveting paternal microbes, may not seeing much of the treat, but it's a gift that last the lifetime. these bags not only protect us from infections, they're essential for our overall health. they also have an important role in regulating the immune system. the immune system never rests itself constantly patrol bodies to eliminate pathogens. but this palla can also be dangerous. it can potentially damage your own tissues and

therefore it must be controlled, it must be turned down, it must be regulated. the immune system has an internal police force, keeping it under constant surveillance. if you don't have a properly regulated immune system, it becomes trigger happy. it's attacking people's brains is attacking people's joints and giving them arthritis or it's attacking the contents of the gas. and then you have inflammatory bowel disease or it's attacking trivial quantities of pollen, all dog dandruff or whatever in the air. and that gives you allergic airway disorders . and what keeps our immune system in check is al microbes. so that if you have that organism in the gut, you have mo, mo, policeman, more regulation, more control of the immune system. so it doesn't get trigger happy and do crazy things. the supply of these microbial regulators doesn't stop at beth.

the mother continues to deliver hundreds of species of bacteria in her breast milk . and it's only very recently that it's become clear that brush not comes with a horse. we of microbes that have moved up through the mother's body through the lamb end of the mill in. com as part of what, what goes into the baby with the breast milk breastmilk also contains sugars that the infant can't digest these like fertilizer for the baby's rapidly developing gut fly. in the breast milk becomes a really amazing example of the way in which our bodies actually evolved to help these microbes to the next generation. by the time a child is 2 and a half, it will develop a fully mature, microscopic community. collectively then honest, i'm micro biome, there is much a part of us as any of our own organs. every one of us is

a finely tuned society of many different life forms, relying on one another for survival, but burnt just beginning to discover new species. in the most unexpected places, this little dog could determine your health

bacteria strive in every nook and cranny of your body. and one of the richest ecosystems is your navel. it's a tiny crater, the scar that we carry through life. and we barely give a thought to it but the scientists at the north carolina museum of natural sciences. the naval is a place of infinite mystery. this is the home of the belly button, bio diversity project. hundreds of volunteers have been recruited to toil

a cotton swab in their belly button to help to find new species. by the power of our research comes from the fact that it will be able to sample so many different citizens as scientists. and you kind of can't harness that power unless people are engaged in the project. welcome to the daily planet theater. this ryan mellow glo bills himself is a microbiology, comedian. we'll be talking about some citizen science projects and about the light that lives on us will be talking about tiny life, which is really fascinating and infectious disease walked into a bar. the bartender says we'd all serve infectious diseases. this bar the infectious disease as well. you're not a very good host. i can make you laugh. maybe that'll make you more open mind into the subject, and maybe don't make it more memorable. and we want you to take the rob and be really careful. i'm just listen to that. lift. that is nice and good and micros out

as well. that's happening. you actually get individual living organisms on the belly button is calling with life is protected from the chemical warfare of soap. and it's usually covered up from the ravages of wither only live, which makes it a prime can in the discovery of new species. one person was carrying a form of a cake life only ever seen before in the most extreme environment on a in deep ocean. what's interesting is that if we look at bacterial diversity in the human belly button, we have a huge amount of variations. you know, among 60 individuals, there was not one species of bacteria that was found in all 60 of those individuals . micah with no patterns,

fingerprints and the dna. the wildlife in our belly button is unique. it's al microbial signature. but it's in a constant state of flux. the places we gung, the food we eat, the people money. they all affect our microbial jungle. so far, the north carolina team has identified 2300 bacteria. is that 4 times the diversity of all bird species in north america. and this abundant tavis has come from just 60 belly buttons. some people have hundreds of species living in their belly button. some people have as few as sick species living on their belly button. and having fewer species on is associated with poor health outcomes. just as we need bio diversity to support life owners, we need

a variety of micro organisms to god. the health of our human. he crises, timms on each square centimeter uschi. they're moving a 1000000000 bacteria for them. it's a land of abundant plenty of seats pies. you see t 1040000 dead skin cells our that's 2 kilograms in a year. part of what they're consuming is our dead skin are dead bits. and so there's some decomposition happening there. they're, they're at war with each other. and so even our good bacteria are actively finding each other, producing antibiotics. they're all trying to win. none of them wanna just be confined or armpit right each and every species, they would all benefit if they could colonize us from head to toe. one of our microscopic residents engaged in chemical warfare is bacillus septimus, a petrol

a skin looking to funky to attack without in we'd wake up coffee taking mold other microwaves. like statler caucus epidermis colonized asking in numbers so vast that there is little room for invading rivals. but the true power bacteria comes when they act together and dis, coordination requires a special language. their genes are encoding proteins that are allowing them to talk with each other and to detect each other and to control each other's growth and basically to allow other bacteria that are more beneficial or less competitive with them. you know, to grow a greater abundance. by tapping into a cell to cell network, microbes conspire with their own species and build alliances without a bacteria to outsmart invaders. bacteria,

the most successful organisms on earth. and part of their success is that they're able to steal the genes they need to adapt and thrive. they're able to change their genome very easily. and so this is why it's really important to say the bacteria that grow on and with us and in us to understand in a sense like what is the stable state. because when a pathogen emerges, it's often, you know, one of these typical bacteria that have co love with us and have been not a problem until who they picked out. something perhaps from a virus friend from another bacterium who knows what. and now they just changed the game. this genetic flexibility can transform how harmless microbes from dose i'll skin graces into vicious killers. i suddenly felt very ill. and i went to the, the gentleman's toilet. and basically i collapsed on the floor. but how can a tiny bacteria destroy a healthy body in just a few hours?

for andrew ferguson, a visit to an alpine resort, became a life and death struggle with a rogue pathogen, vomiting and a blood coming out of my mouth in. i was in all sorts of strange places on arrival, and who had a quick sweet midnight help who completely unaware that uminski bacteria had already completed his body. the bug was trip b bug actually got in through a couch on the leg. and i was having a raw goes attack were effectually where the body gets overwhelmed by bugs and you go into a constant shaking. and i ended up pat darmesh cotton cation hospital. over the next 12 hours, i must have had every test known to mat. they just didn't know what the problem was . eventually after taking blood couches, they discovered that i had a structure called b infection. and then over a period of 3 days,

i was given increasing dosages of different types of penicillin. but nothing was working. it's like being in a canoe and going down the niagara river. it's where in it, early enough someone can rescue us. but if we're far enough down that river, eventually nothing is going to help us. and unfortunately, that's the situation we have with these invasive infections, where at the very last moment we have to get a surgeon to get in and remove that destroyed tissue. the surgeon said, we're probably gonna have to advertise the leg. the infection is spreading in the main r 3, and if we don't get it, it's going to go to your heart and you will be dead. i remember saying to the surgeon as i went into that operating theatre i can do without a leg, but i certainly can't do without my life. flesh eating disease is an infection that literally eats way through the layers of tissue that surrounds the muscles. and

it's fast, he can cause death within 12 hours, it can spread amazingly quickly. sometimes we can even see it before our very eyes . this bug needs serious vigilance. 160000 people are killed worldwide by this material on slow it. every year. i still have my leg and as you will see on actually still have it, the aftermath of all of this is a, i have to take care penicillin twice a day. and that has its implications as well. because unfortunately, over use of penicillin tends to cause some killing off the good bugs that sit in the gut. and then i, i ended up with other complications as a result of that. these are dreadful infections to go from a perfectly healthy person, one day to dying, or only being saved by very aggressive surgery is an indication of these bacterias

are potential for harm to us. but what could turn straight to cook is usually no more dangerous than a sore throat. into such an aggressive killer. micro biologist, professor mac walker was intrigued by the mystery. it was quite a surprise that being quite low levels of very advise of diseases caused by this bug. with some ingenious genetic detective work, professor woke, attract the origin of the deadly disease in the art midnight ideas in the rocky mountain region of the us. there was an output echoes, some flesh eating disease caused by strep to caucus. this outbreak was investigated . and what was found, was it a new group? i stripped a caucus, had come on to the say,

which was more virulent and better able to cause in phase of disease. this virulence was caused by a virus called bacteria sash, which invaded his strength and modified its dna. it inserts its genetic information into the bacteria, and that's the re programming that takes place when a bacteria fire infected bacteria. luckily, the chance of catching such serious invasive infection is still small. usually where able to live with these bacteria within out thrives for on our skin without getting disease. so people should not be freaked out the next time i have a sore throat because that's just a normal event. and our immune system is liable to deal with a very adequate light blue. ready must have to wildlife on our bodies is hum,

ask if we might be horrified to discover what they get up to meet the tiny parasitic mighty god dammit x. me. he takes up residence in your eyelashes borrowing head 1st into your paws. there are these long sort of narrow things they come out at night when you're sleeping. come out under your face and have saxon and crawl back into the pores. it's an animal, it's on your face, and we don't know very much about it that that's enough for me. rob dunn's mitchell might protect is trying to shed light on one of our most overlooked hang is on. we can ask questions like how the might and one human population relate to those another human population. pacific islanders, they have different might species as a function of the relatively long isolation from, from other people's, ah, aboriginal peoples of australia. what did their mites look like? how these might change does our faces have changed?

it's super exciting. people get to see whether or not they have might, people get to see what they look like. let's take a glass of diet because we're going to try to get in here. sorry t though, and one of you live in the mites offering. well, you know, i don't think so because i think they like to cling to it deep inside the chords on, on your feet. it's always good to know they're clean directly. i think they like to live in the oil and you're so basically i feel like good oil out here, come and get a the eat boil from our pores. you probably also eat microbes. they probably have a pretty specific suite of microbes in their guts, which are sort of just, you know, little hints about what's going on there. as it turned out, bryan's face might have made a significant contribution to science. this is the 1st time might have been in the field, giving that they to a pollute about i fit. the truth is,

is you're not really separate from these critters like who you are as defined by your interactions with other speech. what would we be without them yet? what will we be without them and who are we when we have bad species? and so for example, to take a really extreme example, i talked to plasma gone. the i said this is produce that gets him to the brain. and when it gets new, our brain, it changes what happens in our brain. talks a classmate. gandhi, i was a cunning parasite. it's a real life, some be bug, and it's on masking. is one of the strangest stories in science. you ah, newly suit respecting mental skis? well clear anything. mills like a cat. but the mice infected with a zombie. bog. cats on like a magnet. mice pick up talks of plasma from soil, but to reproduce. the parasite has to find its way into the intestines of

a cat. and the best way to meet up with a cat is to alter the mouse's natural fear and make feelings fatally attractive. ah, the brain was right, it is now easy prey. but it took the plasma, but the real winner here, once he sighed the cat he can reproduce ah, the trail of the zombie bug lead to prague and one of the world's oldest university professor yars laugh leger is a renowned specialist in the study of parasites by a complete coincidence, just as he was looking for a new subject to study, he was tested for talks of plasma and the result was positive. i was not very

happy to be infected by some are as i am, but so in the same time it was very interesting. i mean, this idea that it can explain of some behavioral pattern of me. normally, flacco is a cautious person, but he began to exhibit some very risky, hammonds, not unlike a mouse who is attracted to cats. for example, i'm not to worry a frightened situation when i shouldn't be afraid. it's so maurice strange behavior or not for example, i was in co, tristan and there was a lot of shooting around and i was quite calm and it's not the only separation. also my startle reactions are. little bit unusual when somebody

hit the horn behind me in some traffic, i stay in the same place to look slowly behind what, what does happened before flag? no one ever thought of linking human behavior to talk to plasma infections. any flag it's hunter was right. it was missing with the brains of many other people as well. i started to study this. i foresee this on the cheapest material which is available here. i mean, on our students and 25 percent of them lockbox upon my infected. these studies show that those infected by the zombie bug was far more likely to put themselves in risky situations. the risk of traffic accident of supplies, mountain infected subjects, is about $2.00 time higher than the risk of traffic accident of non infantry.

the implications of this discovery are unsettling. toxic plasma is one of the most common human parasites. he used to sing that our mind, this really our but our results show that maybe it's not through we can be infected by aging, unwashed vegetables and under cook me live. in some countries, it's rounded in france may barely complete his popular infection rates are as high as 55 percent of the population. so the next time you meet a reckless french driver, the where it may be is on the bug behind the wheel. ah, the here on your head is the equivalent of

a rang forest shaded moist and reach in nutrients. it's the home for an annoying little creature. the hit house. there are really interesting evolutionary stories going on on our bodies. and so, hair wise, in that regard, are fastener in head lice and leaving fossils. they are the ultimate survival machines. lice approximately appeared on a some way in the region off 815230 1000000 years ago. this means that they predict the great extinction event that killed of dinosaurs and wiped down the 75 percent of all the species at london's natural history museum. doctor vincent smith takes a special interest in these blood sucking parasites there about

$5000.00 species of life in total. this one here is a human head louse. this is a female, is highly adapted to living on human. so they have the thick, sharp claws, and a groove under the louse where the hair sits to the vacant clean home. lice must lives on the host. if they follows. that's it. they're dead. right at the front is the mouth where tiny shot keeps jess out. they find a blood vessel and they feed on the blood. yet, despite these advanced features, lies can't walk, call o fly. they leave flow lives until we come to get when a body parts meet, lice, don't miss the opportunity to jump ship. one of the reasons why light spread

particularly quickly and young children is because many of the social barriers that we would normally have as adults don't exist in young kids. you'll see them touching, hugging each other all the time. and that is a perfect medium for the transfer of life. in a school room, head lice can pass over several heads within an hour. for head lice can be really difficult to get rid of. almost none of the traditional insect a science will work and you have to use other means usually physical means simply to get rid of lies that lie some more than just in the rotation. they've changed us in fundamental ways. one of the striking teeth is about the human body is it's hairless. so was an evolutionary breakthrough, a warm hug on

a cold day that allowed mammals to living conditions to hostile reptiles and beds. and once he revolved a 120000000 years ago, he was really na, st. yet we ended up virtually, hence why some people think that it saw a, it was actually to help ah, lose our lousy infestation. so that so there were few extra parasites license please nava things because they comp and he cling to a naked skin. a fairy coat is a safe haven to takes. lice plays and other bloodsuckers and, and not only annoying, but some of them can carry lethal diseases. weiss and flayson and there can that they don't kill us and enough themselves. but because most, the doctor parasites take our blood, they hair

and those lisa of any already adapted to live on coals. hey, like pubic hair, should they get across to humans. and so it looks as though around 8000000 years

ago, an ancestor of modern gorillas and, and one of our ancestors came close enough to exchange life. that must have been some close physical contact for us to have quiet that louse. what happened in that moment? only the only the girl ancestor and our ancestor know. i suspect it was, it was a little bit tawdry. i mean, the suggestion is it was sexual one things, fisher, one way or another. we got crabs from them. since then, genital nice and traveled the world with us. but now in 1987, 7, brazilian women typically assisted open the j 6 to 7 to offer what they had done. the brazilian wax the complete removal of hair from the pubic area

in only a few years, this form of waxing has gone from the exotic to the every day. it went like a long life. people coming from television from all over. they wanted to know what is this? it's the most successful innovation in hairdressing since the permanent wave. but this addiction to the brazilian is actually threatening pubic life with extinction . you take away their habitat and they can crawl on, but they can't hold on. i feel very proud i lost out that they might be extinct. it's ugly, it's ugly. imagine a whole suite of species like this, but that we're used to holding on to us. and then as our, as our hair fell away, they lost their habitat. we saw t listening to read ourselves at paris. i'm exposing our dark skin to the african

sun. but as we ventured to cooler climates, asking became pe we of these differences in asking come to our interaction with the bugs that meet on us. these are very fundamental aspects of one of those to be us that are plausibly linked to these little organisms that crawl around and her scan and hang on to our firm. we are not alone. bugs have been constant companions. the hidden force behind your health and even your bag. whatever you are, you owed to them. my clothes have been the making with

in good shape have you ever smelled fear? tasted a feeling. ah, ah, now joy send st. john to shop in your 2 steps.

in good shape in 30 minutes on the w. o. people in trucks injured when trying to flee the city center. more and more refugees are being turned away at the border. families playing with people. extreme drought, rough getting 200 people around the world, more than 300000000 people are seeking refuge. why?

because no one should have to flee. make up your own mind. w. made for mines. ah ah ah . this is dw news live from berlin. russia bridge to crimea has partially collapsed after a massive explosion. moscow authorities say and explosion, has severed a vital link between its mainland and the peninsula. it sees from ukraine in 2014 an advisor to the cranium pres.