so thing you do in this country like to keep taking on the powers that be the risk . everything turned into our needs. activists, journalists, and politicians living in exile the way to which on the list for their mission, what drives them. people need to know what is happening that our series guardians of truth watch. now on youtube dw documentary the we still don't know what sounds dinosaurs made, but there is plenty we do know about 10 times to fossil signs around the won't. stay tuned for one very special discovery. instead of a fast amazing 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. discovered in tons and a and then a gentleman called on me 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. the results of fascinating and also revealing when it comes to gym and colonialism. this is the world's largest mounted dinosaur skeleton. jeff titan, brown guy called oscar. that is a,

he's 13 meters, 27 til around 23 meters. long. hello. and how's it going? this will would 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 the tongue, the dresser tighten is one of the knowledge is sort of post the res. so it essentially stands for that entire grade is a counselor, cooper does all the largest long dwelling vertebrates 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 were dug up during the 10 to google expedition and colonial german east africa he attended the expedition is still considered one of the most successful, vertebrate poly ontology expeditions because of the variety of dinosaurs,

the dentist and event it to be small area in the home before the at 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 southeastern tons in a as one of the expedition latest kept a gentle german putty ontologies that no young inch understand a detail. the end of this visit postage rights at the beginning, where he writes that ideally they would like to tear down 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. you know, we need to remember people moved out by hunt cuz i'm

a homeless around 500 local people. took part in the excavations thinking of the petrified fossils and putting them in clay, in savannah grass. and then into 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. and then of course, it keeps repeating the perspective of looking at people who we comp name, but who are absolutely crucial to the expedition. it is to an absolute north when this loan 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 bill in of the yeah, the she and number the she and i'm on the phone really good. getting this

expeditions to zillow, who says sad dog is electra at the university of doris in terms of a yeah. he's research the oral history of the expedition. so i would say probably this, but i told her just ok. they don't affect her just okay. we have rooms kind of specialized is by is already kind of walk ok, but the extra doing of it was, was done by enough events. and this is very important because it's been i to that for ground because of that, that fixed condition actually was in. they made their way to of actually got no doubt about the fossils were cleaned and pieced together at the museum and fell in the dinosaurs onto the state. the absolute show piece here. yet the colonial origins of the last thing, legacy jim and general paula from that the full back still has a dinosaur named after him. the diesel also source letter full, becky. and then that's the issue of compensation. so you have now decided to kind

of use a monthly fee to just some of them say, okay, we need it, we need it, we need to be in that immense box but us. so we have something with some, some advice or say okay, no, we don't need to be this this box. but so just to the government, the given that government should be paying for. so money to the community is protecting these. that remains above which actually belong to this area of to double is are headed, takes most of the tend to grew fossil. it's currently lying. the lot brent find all kinds of buildings, natural history museum. they're still being used to research to find out how dinosaurs moved, for example, and precisely where the muscles were attached but even over a century light to some quite some bottles, remain unopened. on the positive side,

the packaging itself serves as historical evidence about the expedition, is that the most in gaps that filed a degree in abundance in the area. and it grew by quickly of to be included expulsion enough because of almost the wooden desk we see at the end here was imported from scandinavia, which i think because they didn't have any big trees on the ground floor. and my daughter and i didn't catch the announcement here shows and then you can see a bit of symphonic ra sticking out here. and it was used to prevent the contents from moving around during transport from the french provision contraband transport . the contents of the barrels. however, are as yet unknown um, potentially valuable fossils to, to be able to look inside without destroying anything. any other thoughts has brought the containers across, building to the license institute, wazoo and wildlife research here veterinarian key to switch normally perform the c t scans. i'm living breathing animals, not

a 150000000 year old phones and 100 year old barrels. the honda wouldn't let the nails land via the fossils image and there is indeed a little treasure hiding and this bamboo barrel tells me that looks like the bar. yes, that's the rest of the jewel. amazing. it really is the rest of the lower jewel. it's the skin, a closer look at the scan. revealed 3 jewel redness from the smooth di slow to sort . this is all that's quite special for us because we only have a few sco remains from these dinosaurs. zoe and we find these, it's under joel even still has a 2 senate that's that's the root here on the other pieces contains smaller replacement months. apparently these dinosaurs change the teeth, this you and you are,

these are strict most i'm itching to get my hands on this piece because it's so special sort of 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 of jewel. until then, scans of the other $39.00 barrels schools that have a further insights into that pre a start contents and gym, and colonial history via owns it, any dinosaurs running the planet today. the most likely reason is an asteroid, striking this around 66000000 years ago, also wiping out countess other living beings imagines and disappearing. subspace ease is inevitably insurance by environmental factors, changes in local conditions, evidently having an impact on the 5 site. researches 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 novel at 1st sight

the most if you can no longer track that special, someone down a glow was finding a made is no easy mountain nowadays. that's thanks to our ever brought to cities. female blue ones comp fly, so they rely on that bright glowing rear end to attract upon us all biologically put a bio chemical reaction takes place in the cells of their optimum. it involves lucifer run, and a t p, and leads to energy being produced in the form of light. 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 lights in the mains. when it was dogs, the male found the female. every time that on the street night condition and only if we face smile managed, the artificial light likely dazzled the beatles. so let's turn off the light small

roof and gives the glue. when some private time the blood is red, why are they 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 answer it on the show, you'll get a special surprise as a thank you. come on just on this week's question comes from is on chill, cool, is he a mock who in nigeria, the wire airplane wings bit at the ends to understand the function and benefits of these wing limits or winked of devices. let's look at the air flow around the wings, due to its shape. a plane wing triggers differences in 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 flames, flight direction, and counteract the lift. this is known as induced drag. the wing looks links in the roof, the air must travel to reach the wing tips. this megs for smaller and slower vortices induced drag is reduced and the wings generate more lift. in 19 seventies, richard t whitcomb. the aerodynamics specialist at nasa investigated the air flow around planes and conducted the 1st successful test with wing was he made an astonishing discovery. a plane with wing lives can ascend quicker while using less fuel than an aircraft with the same thrust and wing span, but no winked of devices on long haul flights that can result in kerosene savings of up to 5 percent. even though winland'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 winland's allow for a greater frequency of take offs and 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 storks have they when the hips turned out? well flying that gift of evolution lens, the maximum list and energy efficiency, the, the cartoon movie rios fetus applies of a more delicate bed species. ah,

good morning. blue isn't like other birds. he never learned how to fly. but these are found to discover how he really flew has been last, may i have a kind the only other blue mccaulhey scene rio de janeiro. that's where the 6 is mccaul used to be at home before becoming extinct in the wild. 20 years ago. a development that to other just trying to reverse the moon is still visible when you 1st hear them. 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 mix pretty missiles,

as similar as possible to food in the wild once they eating a little bit while they able to put together a diet. and they give typically we don't always have that available. so we have to use what's available to us to try and mimic of some of those i eat spits isn't a cause, 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 say that the animals are supposed to be becoming less used to people. these birds have never been in a while before. they've been no sticks and allowed for more than 22 years. so 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 vulnerable. so we make sure that they have food available and they are healthy while they fund the while to this fixes because

are 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. my dad buick one va. when i was on the other. i saw the birds near a house 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 i to their help is needed to make the reintroduction process a success. i can pull up the device so that i mean, we have to maintain this fixed as 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, 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 out all typical of brazil's bearing north east. but these practices are destroying more and more habitat poaching with the last straw for them because habit that 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 matrices fixes, collection available. genes are analyzed to reach the best results. a complex

project costing millions, finance primarily through donations. 50 to 6 in the cause travel to preserve where they were met at the airport by cromwell purchase, basically new arrivals of the 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 in deals 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 the 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 santo's lives by raising animals and saying everyone here raises goats. i want to have a lot of them just a few more than one. everyone has something to do with going to see them, the ones they can best survive in this drought written area of campbell. the ice is

trying to convince the farmers defense in their animals to allow nature to recover the heart of sparked, you know, to change the mindset. they are the code sure that they have here the years that came from their parents didn't grandparents. so it's quite hard to understand how the thoughts are connected. she is relying on the younger generation in the city of kudos that to speak to them because it has already made an impression. even in this elementary school, the ones in the cause to come back to the city becomes more beautiful, a promotion campaign. and i kind of hands on education that's with work trying to bring back and know the proud to be tried to speak to me, call the pro,

to protect the environment. the 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 theses science teaching that. so can that as soon as we now know that there are 4 types of to run, for example, to southern dropped, the most sizer off the ridiculously, to off ends in northern, to run on a slightly smaller scale. here's 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 your knowledge is biological collection. and the way modern technology to make the indivisible visible to see, to read scans many things,

but never had anything. this spectacular form of miss scott yvonne. we were amazed to find this. we've never seen anything like it before. so last year we didn't expect to find something and i thought in this area, the story began to show a back, a need to visit if need to bring in, in germany, biologist, marina. and what was that? and had colleague regularly set up 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 would not be me. in fact, if the insects fly up the middle of the top, there's a hole in a buckle. definitely the insects like into the bulk of what a phone and to 80 percent alcohol, which preserves them. forrest escape. 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 trots, allow us to regularly find new species in these groups. to show a bag 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 it? again, 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 belonged to a family of wasps. but then she found something she had never come across before. the scales to 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 of unknown as looters. i have had a row spikes on the optimal kind of on so far. now with a was that i had found a hot, fat. and so i began comparing it to open noon species to see whether it might be something completely new and that no one had discovered yet just kinda at the top. and that's where las kaufman 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 insight collections. it comprises nearly 5000000 specimens, 350000 of which belong to the order of heim and not through so ends these and wasps. the inch monitors compare the tiny boss with it's the ration is on the optimum. with existing species, the foster sarah 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 was with this particular ro stole into the end of its optima nights and this is there a hundreds of thousands of species house. 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, right. of course i'll try to continue studying specimen. melina, i'm always a catholic, places it into a special container. she wants to take a look deep inside the was the, the concert institute of technology as a special needs of equipment which were unable had to do just that. it's

a high throughput x ray mike gray, c t scanner is on the 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 to materials research. for example, it produces 3 dimensional images of small samples showing a high level of detail. these are longer type the complex piece of digital technology will help unlock the secrets of the new wasp species. it's a special form of computer to him all graphy the can reveal the inner workings of specimens that have just a few. mike, for me to is in size. let's see. i laid it 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 i'll be pleasant to use for laying eggs and it's all in very high resolution. such discoveries represent lucky moments the biologists because many species disappear before we even know they exist moving 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 should see you next time and stay curious by the, the, the

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