what is it really is possible to reverse the age of researchers and scientists all over the world are in a race against time. they are peers and rivals with one daring goals to help smart nature. the boy likes watching it on youtube. dw documentary the we still don't know what sounds dinosaurs made, but there is plenty we do know about them, tends to fossil signs around the won't. stay tuned for one very special discovery is dental and other fascinating stories on dw sign show. welcome to tomorrow. today

the these bamboo barrels haven't been open for over a century despite their own valuable contents. discovering townsend and then again, call on a today they tell the story of the historic tend to grow expedition during which some 250 tons of dinosaur bones were excavated and taken away to the land. now researches are looking inside the bottles with the help of a c t scanner is the results of fascinating and also revealing when it comes to gym and colonialism. this is the world's largest mounted dinosaur skeleton, a giraffe at tied to and frank, i called oscar that is a he's 13 meters,

27 to around 23 meters long. and how's it getting his world record entry to prove it? today oscar takes pride of place and buildings, natural history museum. he's also a treasure for researches and the museum is probably until logical collection headed by tanya shots. the idea off of the tongue, the dresser tighten is one of the knowledge is sort of post the res. so it essentially stands for the entire great is a corporate does all the largest long dwelling village rates of old time that's highest. and most of these dinosaurs would be a 150000000 years ago in east africa, and present day tons and in that bones with dug up during the 10 to google expedition in colonial gym in east africa. he attended the expedition is still considered one of the most successful vertebrate probably until energy expeditions because of the variety of dinosaurs,

the dentist and event it to be small area in the home before that sign typically beneficial. but a colonial undertaking. it's an issue being examined by you know, a whole month from buttons, natural history museum. the excavations took place between 19091913 at 10 degrees of hill and south east and tons in the one of the expedition latest kept a gentle german putty and told her just that no young inch understand a detail. the end of this visit postage right at the beginning, where he writes that ideally they would like to tell them the entire hill on in the style. and in the end, they took away an incredible $250.00 tons of rock fair flushed. and it's hard to imagine how they actually moved it. my know, we need to remember people moved it by 120 some of the ducks. i'mma from was around

500 local people, took part in the excavations thinking of the petrified fossils and putting them in clay in savannah across and then into a wood crate, sol, bamboo barrels, all documented on camera. these in the, as is common with racist colonial imagery, these people are not usually named. then of course, it keeps repeating the perspective of looking at people who we can't name, but who will absolutely crucial to the expedition to be expedited to an absolute north. when they come on. those workers then carried the bustles to the port of lendy, 4 or 5 days journey on foot. 250 tons of fossils. over the course of 4 years. from there the cargo was shipped to belen, the yeah, this yeah number that she and i'm going to do for you in good you can this expeditions to that out who says saw dog is electra at the university of doris.

so, um, in terms of the yeah, he's researched the oral history of the expedition. so i would say probably this, but i told her just the given it that her just okay. way of doing this kind of specialized this by his already kind of walk. okay. but to the ext, your doing it was was standing by and i think that's and to be so very important because it's been i to the 4th round the company that the victim edition actually was in. they made their way to actually got no doubt about the faucet was well cleaned and pieced together at the museum and fell in the dinosaurs onto this day. the absolute show piece here. get the colonial origins of the last thing, legacy. jim and general paula from the fallback still has a dinosaur named after him. the diesel to source letter full, becky. and then that's the issue of compensation. so you have now decided to kind

of use amount of if you to just some of them say ok, we needed to renew, when did they did that immense box, but us always upset most of them. something in buffalo said, okay, now we don't need to be this, the that means fax by. so just so the government, the government, the government should be paying for so money to the communities for protecting these that are the advanced about which actually do only to this area of to double is, are headed, takes most of the 10 to grew fossil is currently lined the lot, print fine, all kinds of buildings, natural history museum that's still being used to research, to find out how dinosaurs moved, for example, and precisely where the muscles were attached or even over a century later, some crates and barrels remain unopened. on the positive side,

the packaging itself serves as historical evidence about the expedition is up almost in gop steps, found a degree in abundance in the area and it grew but quickly of to be included expulsion enough. these are found the wooden desk we see at the end here was imported from scandinavia, which i'm because they didn't have any big trees on the ground bar. my daughter and i didn't catch the announcement here. so then then you can see a bit of stuff on the ground sticking out here. it was used to present the contents and moving around, doing transport from the physics, which provision contraband principled. the contents of the barrels, however, are as yet unknown and potentially valuable fossils to be able to look inside without destroying anything, any other thoughts as brought the containers across spelling to the license institute for sue and wildlife research. here veterinarian key does which normally perform the c t scans on living, breathing animals. not a 150000000 year olds,

bones and 100 year old barrels. the honda wouldn't let a nails live by a festivals image and there is indeed a little treasure hiding in this pond blue barrel tools that looks like the bar. yes, that's the rest of the tool. amazing. it really is the rest of below, which will give you i'm just gonna close and look at the scan video to 3 of your remnants from the smooth dice and low to source is all that's quite special for us because we only have a few sco remains from these dinosaurs, zoe, i'm leaving the joe even still has a 2 senate that's the root here on the other pieces contains smaller replacement ones. apparently these dinosaurs change the teeth. this you and you are using strickland sometimes 18 to get my hands on this piece because it's so special from

stuff is on the us. perhaps the spiral will be opened and she'll be able to carefully get to grips with the dinosaurs level jewel until then scans of the other $29.00 barrels will deliver further insights into that pre a start contents on gym and colonial history via owns it. any dinosaurs roaming the planet today? the most likely reason is an asteroid, striking this around 66000000 years ago, also wiping out countess other living beings. the imagines and disappearing. subspace ease is inevitably influenced by environmental factors. changes in local conditions are evidently having an impact on the 5 site research, as have been conducting, an in depth study on the causes of its dwindling populations. in many cases, the insects have difficulty even guessing together the love at 1st sight

the most if you can no longer track that special, someone down for glow was finding a made is no easy mountain nowadays. that's thanks to our ever bright of cities. female blue ones comp fly, so they rely on their bright, glowing rear end to attract upon us. oh, biologically put a bio chemical reaction takes place in the cells of their optimum. it involves to be super run and a t p and leads to energy being produced in the form of night. this is known as bio human essence, but kind of competes with also official lines. a recent study sent, mailed blue ones into a maze to search for a female mate. they were varying amounts of unites in the mains. when it was docs and male, found the female every time that on the street night condition and only if we face smile managed the artificial lights likely tassel, the beetles. so let's turn off the light small roof and give the glue when some

trying fit time, the blood is red right now, you know why, why applies low. got another science question. don't wait, just send it in as a video, text or voice message. if we on so that on the shows you get a special surprise as a thank you. come on, just on this week's question comes from is on chill, cool is the a mock who a nice area, the wire airplane wings. bit at the ends to understand the function and benefits of these wing limits or winked up devices. let's look at the air flow around the wings. due to its shape, a plane wing triggers differences and pressure above and below. and that's what produces the lift. these pressure differences cause air to flow in the direction of

the wing tip and spill over and creating swirling air masses called vortices. trouble is they flow counter to the planes flight direction and counteract the lift . this is known as induced drag. the wing lifts links and the roots, the air must travel to reach the wing tips. this makes for smaller and slower, vortices induced drag is reduced and the wings generate more lift. in 19 seventies, richard t whitcomb, in aerodynamics specialist at nasa, investigated the air flow around planes and conducted the 1st successful test and with wing. let's see, made an astonishing discovery. a plane with when lives can ascend quicker, while using less fuel than an aircraft with the same thrust and wing span, but no weight of devices on long haul flights that can result in kerosene savings of up to 5 percent, even the wing. let's add more weight to another advantage. less wake turbulence

which can pose a danger to planes when they fly close behind each other. that's especially important during starts and landings, because the aircraft must come and go in quick succession. so wing, let's allow for a greater frequency of take offs. 10 landings the did you know that those all important wing that's mimic mother nature. lots of beds that have most of the out of soaring like buses, eagles, and stokes have they when the hips turn that well, flying. that gift of evolution lens, the maximum list and energy efficiency, the, the coaching movie really reaches applies of a more delicate beds. b c's. ah, good morning, lou isn't blank,

gather bird. he never learned how to fly, but these are found to discover how he really lose the last may think i have a kind the only other pre mccaulhey seen rio de janeiro. that's where the slicks as mccaul used to be at home before becoming extinct in the wild, 20 years ago. a development that through all the just trying to with us the moon is still visible. when you 1st hear him. they are cromwell purchases, alarm clock. he is the wallet, just biologist, and a kind of manager for the specs in the cause. and right now they're demanding their breakfast, mixture and whistles. as similar as possible to food in the wild. when say 18 older, while shoes,

they able to put together a diet and it gets typically we don't always have that available. so we have to use what's available to us to try and limit some of the 8 spaces because have been flying around the college and googled in this, in ne, brazil for several weeks now will be introduced. the animals 1st have to get used to their new found freedom. they come whenever they hear cromwell purchases quad feeding time. we have to stay back. the animals are supposed to be becoming less used to people. these birds have never been in the while before. there's been no sticks in the wild for more than 22 years. so used to teach them. we don't want them to stop. and we don't want them to be weak and stressed about not having enough food and then phone or both. we make sure that they have food available, and they are healthy while they fund the wild food. this fixes me cause or like

celebrities. people from neighboring areas want to see the birds. only older residents can recall the time before they died out in the wild. people like 84 year old joseph adults santos. like that'd be like one va when i was on the i saw the birds near a house. i live at the river as they wash slow. yes. he asked him for when i was out heard him goals. what kind of guide you, on the dialogue with the local community is important to biologist, go to their help is needed to make the reintroduction process a success pull up the device so that i mean we have to maintain this fixed as a habitat if we want to protect those equity, serious thinking and that requires the dedication of people who live here. so it's because they have to monitor and ultimately put that is that any of the,

the animals extinction in the wild, 20 years ago was also linked to the way people here live farming, good hurting all typical of brazil's bearing north east. but these practices are destroying more and more habitat. poaching was the last straw for them because habits, it was probably the key that brought the numbers down to very little. and that's me . and once you get to that point, they become very valuable to a collector. so the river, they all the more valuable that they are. so suddenly they surprised when they had good, bigger and bigger. the animals return is thanks to a complex breeding program that was supported in part by the brazilian government. a german non profit association led to breeding program using animals from these inside of the owners. and the former amir from guitar made his fix his collection available, or analyzed to reach the best result. a complex project costing millions,

finance primarily through donations. 50 to 6 in the cause, travel to brazil where they were met at the airport by cromwell purchase, basically new arrivals of them vi piece in the country. so it was fantastic. but how can a new vi piece be made to feel at home again and be able to survive in the future? scientists, biologists, and indeed those are working together and measuring things like how far the birds fly. everyone agrees that it can only work if the destruction of habitat is halted . 40 percent of a college and got has already been destroyed. thing was i can google iceland and his team visit local farmers each week. most like your models santos live by raising animals and saying everyone here raises goats. i want to have a lot of them just a few more than one problem. everyone has something to do. what's going on is they can best survive and this drought written area of campbell, the eisler,

is trying to convince the farmers defense in their animals to allow nature to recover the heart of sparked, you know, change the mindset. they are the code sure that they have here the years that came from their parents being grandparents. so it's quite hard to, to understand how the thoughts are connected. she is relying on the younger generation in the city of kudos to speak to them because it has already made an impression even in this elementary school, the i want them a cause to come back to that. a city becomes more beautiful, a promotion campaign in a kind of hands on education. that's with work trying to bring back. and now the proud to be tried to speak to me, call the pro, to protect the environment,

to proud to be from catching up. the hope is that the speaks is because will breed and settled permanently. it could serve as an example for helping others bases on the brink of extinction. recent years, i've seen the appearance of kansas nice d. c. thanks to genetic analysis. we now know that there are 4 types of to run. for example, to southern drugs, the marseilles are off the ridiculously, to off, and the northern to rock on a slightly smaller scale has a new species found up in germany. this is a story about an exciting find that surprised even the experts about research and one of units knowledge, it's biological collections and the way modern technology to make the indivisible visible actually seated with scans many things,

but never had anything. this spectacular coming up. this dropped event, we were amazed to find this. we've never seen anything like it before. so that's good. we didn't expect to find something. and i thought in this area, the story began to show a back. a nature was if needed to bring in, in germany, biologist, marina. and what was that and had colleague regularly set top 10 like structures on this hillside, the phone, the video, it has its own micro climate, which makes it particularly interesting for the insect researches. the 10s function is insect tops enabling movie and, and what was it to record? how the species had changed in number on composition or not, excuse me. in fact, if the index fly up the middle of the top, there's a hole in a buckle. definitely the insects like into the buckling with a phone and to 80 percent alcohol, which preserves them for us. it's good enough. there were still insect groups including have in germany instead of hardly been studied just gone as well. and we

know next to nothing about the awesome projects like our trumps, allow us to regularly find new species. and these groups push our back with its meadows. and scott, to fruit trees is the ideal place for this kind of research. a good state, museum of natural history, nothing. and what was that? it began her usual process of analyzing the insects that had landed in the trap using a microscope, she sold it them into species and size. they were just a few millimeters in size and belong to a family of wasps. but then she found something she had never come across before. the except lawson and i found the 1st specimen of the new species almost by accident. i was searching through the insects and found one look different from the others unknown as lucas i have had a row, spikes on the optimum,

kind of on so far. no other was that i had found a hot button, fat. and so i began comparing it to all the newton species to see whether it might be something completely new and that no one had discovered yet kinda at the top. and that's what allows copeland comes in a scientific director and head if the step got museum of natural history. he and his team have access to one of your it's not just insect collections. it comprises nearly 5000000 specimens. 350000 of which belong to the order of heim and not threat. so ends these and wasps. the inch monitors compared to the tiny was with it's the ration is on the optimum with existing species. after a certain analysis, they concluded that this was indeed a new discovery. wrestling says he, well, after this,

the thought surprised us is that such a striking species can be found in gemini, visited the isaac. this is the only known species of power. so toyed watson with this particular ro stole into the end of its optima nights and this is there a hundreds of thousands of species houses. and then from that this feature has never been seen before us. it's never been discovered when done that could be the sort of tomorrow that can probably do something very special and let us help this particular species and it's biology. so the research will now be needed to find out what exactly that function is. of course i'll try to continue studying a specimen. melina, i'm always a calf, replaces it into a special container. she wants to take a look deep inside the was the, the cancer institute of technology as a special piece of equipment which were unable had to do just that. it's a high throughput x ray, microsoft. he's gonna use this on the fits particularly well suited for creating 3

dimensional images of insects as well as other small samples of the so it's used in biology, but also for materials research. for example, it produces 3 dimensional images of small samples. i'm showing a high level of detail is that a lot of times the complex piece of digital technology will help unlock the secrets of the new wasp species. it's a special form of computer democracy. the can reveal the inner workings of specimens, but it just a few mike for me to is in size. you see an audit highest award. we see all the details base the outside which we've already seen on the microscope. but we also see the muscles inside. we see the, all the positives used for laying eggs and it's all in very high resolution. such discoveries represent lucky moments of biologists because many species disappear before we even know they exist. nothing. and what was that is determined to do my

best to avoid that. she'll keep searching for the unknown right here on her doorstep the that's it. so this episode of tomorrow today, your d w sign shall see you next time and stay curious by the the the

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state of a years life from by then israel says is right to the militant stronghold in the occupied westbank. he's right. the forces use drones to strike targets in the town of janine. and what it says was, i counter terrorism operations, palestinian officials, ty, at least 8 people were killed, that described the booth as an invite. also on the program benz in front of the.