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tv   Birds  Deutsche Welle  May 23, 2024 11:15pm-12:01am CEST

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pushing on and says he will take stock all of the situation again in one month. well, what that fits you up today? well, well, usually the top of the hour of next on dw documentary, uh, looking at why almost off of, uh, almost a 3rd of all, both in the us have disappeared since and $0.19. and that type of data. so much for the 1st 2 years. the assist is i've been in a coma close by persecution and flights. mean? well for con dreams of another world wake up on last starts june, 1st on dw, the, [000:00:00;00]
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the buds, some of the most well loved creatures on us. but as humans cause the planet to change as an increasingly rapid speed, but it's being forced to adopt them to cope with great to threats than ever before. such as changing habitats, culture climates, and dangerous new nathan, the badge for the survival.
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scientists are on covering the different ways in which they are adapting the we discovering the search even more incredible than we have a st. most of the the this is hell go live smooth archipelago. off the north german coast. it's getting to reputation to being one of the most spectacular places to witness but migration a so many but to use it as a stop as a site to refill on that drums. it's also home to one of the oldest, one of the large groups of the prison, the work talk to your can dear. so works with the institute for avian research and will help him. so he's part of
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a team studying the but populations here and have a lot of this is the land has a very long history of keeping on it the logical records i'm going small on. it began with a painter who move to have a good land in the 1840s, fell in love and then spent most of his life here. and i'm leaving you began keeping methodical records of the bird lockers and also published them in a book. until fact, that's why we know so much about local bird life in the 19th century division that we've of easy for with a few and not getting that far. but the real scientific records began in the 19 sixty's. when the data became the standardized recordings were taken 7 times a day every day. and the tradition has continued to the present. yeah, we have the world oldest data collection with standardized catches and can draw conclusions from that to see. we know how populations have evolved and above all,
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how migratory periods have developed in the wake of climate change with the theme of under the your can and his colleagues use what's known as helga lounge, trump's shepherd in budge. the blonde says into a fund says that they can be called safely. the once they have been collected, information about them is record, such as body weight of the wind. blowing on the feathers reveals the buds from the muscle composition good indicator of general health. they know exactly which spaces have been caused and home and
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neither of this information can then be compared to historical records to understand changes over time, the successors they've noticed the long distance migrants are in trouble and the facing steep declines. the exact reason for this is on the road, but it still to be because of global habitats, destruction and lots of insect. ready unimportant appraisals for many bucks. for the loss of migrants. isn't there only finding? or y'all can and his team have also discovered that black cops a migrating more than 3 weeks earlier than they did 60 years ago. these small waters typically migrate sauce to the southern mediterranean and africa during winter to reach
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a warmer climate with more sources. doctor joseph williams is studying the navigation here on how good recent tracking data shows no need to black gaps, migrate totally. but the direction of the migration has also changed. the reason is, but it's mike, right, is because they want to get to a place with a more clements climate. but recently, and by recently, i mean within office century is now really and boats are starting to migrate north, specifically to the united kingdom. previously, those who migrated north would perish in the cooler conditions, but no many who choose this route. so the only thing has been question with this is in response to the fact that it's just not as cold in the north as it used to be. and also the impressed, and people really like feeding the birds. and so actually like cods, have started to use both feet is comes, but if it is in the winter,
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and this is in the thoughts, feelings to why they are so successful on in, in going and in some instances precisely the wrong direction. it's not just black camps who seem to have successfully adapted to roaming, punish the air on how good a land there is, a suff and see, but that has also great cleats beneficial if i started without the fact that it's for us to begin breeding on how of good land and 1991 and their numbers have increased steadily, sense was tired of the growth. so the idea that i'm not even offering numbers kind of counts for and just extra income. the need to know some growth could be explained by other than it's being attracted to the colonies, but the species is also extending its range generally, which means it's doing quite well in the current conditions in the north and see if we can get funding meeting we are not to clock the
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safe, such as hiring and micro some of the governance favor to praise bases and to being pushed further and further. notice that this woman c temperatures. so perhaps this is helping 2 suitcases. gannett, population again is phenomenal ability to dive. also allows them to access a greater variety of fish, some of the c bucks, but not every but i'm seriously adapt to the challenges of climate change, the community that's about sophie and contrasts again and getting wakes and the home owners have declined. charlotte and one reason might be because they searched for food on the surface and having difficulty accessing fish from on the open. but we also observed during the particularly hot summer of 2018, that adult kitty wake simply abandoned their nests and the rags. it was really hot
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on the glitter temperatures lined as high as 52 degrees celsius documentation. that was only going to have a fault because the adult birds were still in the area, but they've left of their nests and buffalo, the oddly, the casey weight, such as the ones pieces of thousands across the world. there's a decreasing a number. the one for things, most iconic spaces, the sky now is famous for its rich and intricate. so the smooth grounds, nesting but often chooses to raise tricks on grossman and farm. historically, the lack of yourself across some groceries has allowed them to access the grands to
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nest and to keep an eye out for predators. with the intensification of agriculture is habitat is becoming a dangerous one. the widespread change from spring to or some sudden cereals has increased the density of crow pushing sky locks to nest near tractor tram lines, making them vulnerable to crumpling predators as pesticides. and we'd colors of spray more and more on crops insects. an important part of the food source are also being diminished. and so in europe, nearly 70000000 individuals have been lost since 1918. and the numbers still continue to full. the
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professor amanda room and her colleagues at the corner elaborate bonus, ology in north america. if i'm covered an even more devastating tab decline in north america, we have lost 3000000000 periods from the reading population. that's nearly 30 percent of birds or one in 3. or it's that has been lost to just in my lifetime allowed. so since 1970, we're seeing these declines that are really spanning almost all habitat and almost all groups of species and no longer restricted to just to be safe that we might of, you know, already been thinking of as requiring conservation attention. instead, we're now seeing some of our greatest declines in space. these that are funding that are common in wide spread. the declines that we've documented here in north america are in no way you need it. there have been studies that have been coming
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out around the world that are documenting your comfortable declines. so it's, it really was a wake up call, i think for a lot of the conservation community here. but it's provide a lot of what's known as ecosystem services. they disperse seems all in a punk of keeping sector population, such as birds decline, so to well, these vital services if an environmental conditions are not sufficient, not healthy enough to support birds well, then they're not likely to be good for people. either. it's a birds can be a real sentinel of environmental change. we've heard as like, canaries in the coal mine, and that's not so far fetched right when we see the clients and birds that should alert us so that something's happening in the environment that we should pay
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attention to. because ultimately, it can come back and affect us as well, the 3rd being the subject to decline for a variety of reasons, such as habitats destruction, fragmentation, pollution, global warming, the meanwhile, human populations around the globe of reached time high h valium, to sustain this growing population agriculture is becoming increasingly intensive. some birds have adapted to thrive in these conditions. grazing on managed gross copland learning to utilize the source of high quality food as a loud bulge,
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such as conical goose to increase dramatically in europe. but as we continue to add the noise, the punish, we're seeing new and unusual problems and much for all bucks to mitigate not from noise such as wind bugs can change that page volume or time at which they say which in areas of high human population thurman knuckles noises which are not so easily overcome the max planck institute for one apology in germany, is one of the largest sensors for bud science in the world. but the full front of coverage research is don't to henrich broke. he began studying the effects of such signs on the verge of 20 years ago. that's on the chief of our home. when the birds have to compete with noise, they sing louder. so have you met?
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you must do that too. we authorize our voices. i can go to the skies along through the birds and have the same left, for example, nightgowns and berlin all till they sing louder when there's more traffic noise. that means that the animals sing more quietly of the weekend and ensuring the week until they have all those and it's ready for that's not because the birds relax and take it easy because of weekends. there is less commuter traffic and therefore less noise. because fuck you, as a result, the birds sing more quietly. ultimately we are the ones producing all the noise, compose the birds to sing louder and louder and spring, and while all types of things. so as mentioned is the reason for the 1st human, this noise is a huge problem the best, but it's become increasingly clear. the noise has similar effects and birds. for the, for example, city traffic causes chronic stress and birds,
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which in turn suppresses their immune systems as tables. the nightstands, their latest findings, one which we recently published here to show the traffic noise can cause birds to have trouble learning, to sing for us to put food. i pulled niema because i was just as human children learn to speak to. he mentioned the birds have to learn to sing the traffic noise has the effect that it is taking them longer to develop their song. and they also make more mistakes when learning thing, not only a scene of the song quality is inferior to some funding type to finish different because on i'm just going to say plus the 2 ends. i can implement this overall fitness and potentially lead to a change in a populations dynamic doesn't guns, which i think i pulled from. that's an important point. especially for species that are threatening to do that to you, of course. because along with all the other issues, animals face to, to human, and choose to environmental change, such as the climate crisis solution,
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etc. there's also noise that noise could be the final straw to try some species to extinction. we're going around. i need to often some us down but it's not just the noise. light is also wreaking havoc on birds around the world. the reason male song, birds, stop singing in the winter is because the go not print. this is a result of the day, like, like, not true, sure thing in which with the last day life they can no longer produce the whole much. so modify the brands and therefore allow them to sing and to break but street lights in towns and cities. each this natural life cycle resulting and bugs coming to breeding condition much sooner than they would otherwise not truly do. meaning the off spring least the nest when there was level for them yet to each
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light pollution from buildings is also a problem to some unknown reason. but it's a drawing to the source of light causing life threatening collections. cornell, museum of flesh births in north america, votes of foss, collection of birds, many of which were found just fatalities from hitting buildings. dr. benjamin vandorn and his colleagues studying these books. so lot of these birds come to us because they have collided with windows or buildings. so one of these pieces is a block sort of blue or blur here, which is a song bird migrant. this is the fate for pending. and so it's across not only north america, but the well with the use of new technology from the kona lab of on to foliage here in new york state. there is hope that we can make
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a difference to adrian. dr. is part of this team, migratory birthday tranquil ignites and, and it's actually in ways of a hidden phenomenon. if there is costs, we try to sort of make these blanket towards your initials 1st come to life and use mostly radars for that. these a whether re dos or a 155 dosage across the usa and mostly used for detecting rain. but the scientists here at cornell found a way to use them for detecting but the whether 8 or state campaign a c individual versus maybe like a rain plows, right. where you also don't see the individual droplets what you see. so if this density of mass of rain from the air is the same reverse, although it's not possible to see which exact spaces are on the move. if we bird migration across the usa can be tracked and displayed on
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a map. so you see all the green dots underwriter, stations, and then colors in the back. you'll see the migratory birds and, and you'll see the brighter colors. that means more bars in the air. the red line, the policies across the screen represents the point that which day becomes nice. as soon as that's sort of gets dark, you see all these bright super bright colors popping up. so really good migration. nice. we trickle. so how many, but migratory birds are in flight of living any given moment? so you see staggering numbers. we're now it's 830400 1000000 birds. and there you see now the sun rise and you see as soon as some sort of starts to appear or landing. i think this too is especially good though to see these are very large scale patterns across the us. something we can never do before. there's like millions and millions of birds in the air,
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and it has been just been impossible to count it. it seems like in the middle of the night, you can see if it's only, since we know how to use the rate or network that the, the sort of girl. if you own birthright gratian itself, you can zoom out to the scale of an entire confidence. and see what the migration looks like and how is this the view to the space. the boat cost technology cannot send me truck migrations. it can predict them to as weather radars have been around for decades. the all carved migration data from the last 20 years can be collected and compared to the weather conditions, but we're experiencing by combining those 2 sources information. we can create a predictive model that will tell us how much migration we expect to, to take place under a given set of conditions in a given area, and really convert
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a weather forecast into a bird migration forecast. to benjamin vandorn uses this information to protect, but it's against the dangers of light pollution. so if our migration forecast safe, for example, that we expect millions of birds to be migrating over, dallas in texas. and we will then put out in advisory that day to, to say, hey, we expect lots of migration tonight, make sure to turn out your, your lights tonight. and so our network of people will work to make that happen. then that night hopefully they'll be the fewer lights on in that city. turning out lights makes a difference even at the level of the individual window in the building. and through our work, we are able to show at, at one convention center in chicago. that is, this building has participated in the lights out program and turned off say, half of its lights on a given night for
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a long period of that bird mortality at that one building could have been reduced by 50 percent or more. and over the course of 20 years, we're talking about $5000.00 or more versa. and that could have been said. there are many challenges in the world that are really complex, like light climate change, about light light pollution and the impacts of light on birds. this is a problem that people can make a difference. it's really something people can do with just a flick of, of a light switch, migratory birds. some of those that are being hit hardest by changing planet. but some of the pieces are adapting to the new environments created by humans, auto bugs. and could you say young to these opportunities? so they to grow up to be told her onto people
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disability because it allows them to not only live along side humans, but to take advantage of the one of the most of adaptation to a man made well, here's the gulf, the, they see flat troops of city buildings as perfect nesting platforms as a safe place to raise the checks tables a land to follow people's should use feeding when the most food is available. if, if that means virginia night, pale next thinking up in areas i much higher rates for anywhere in the past. same one, locals are moving into app in areas. so it seems like something is going right for
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them still to model in goodness from the university of extra to is starting tearing goals on the south coast of england. i've noticed just like very clear when i'm out of town, but people have that fee taken by goals and often when they're not paying attention in goals, what just catch them unaware, often flying in from hines or even a show that i want to do. so actually paying attention to where people are looking . i'm now using this to as, as a way to decide how to get this feet, sorry, designs and experiments to explicitly test the model in places a bag of chips on the ground. and looks a way to see how long it takes until this not
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the within the 15 seconds they've gone the now for the next test, i want to go react when modeling maintains her gaze off to placing the chips down. she waits the but this time the goal doesn't take the risk. those who are brave enough to steal food whilst being watched. often take a significantly longer time to make this decision compared to those that think that going unnoticed. they wait, typically over twice as long as someone's not looking,
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then it's going to be much easier for them to then get to wait for the pass and is able to react. because obviously a human is a lot bigger than a goal. and as a lot more danger, circle back by faster so it really would pay off provo to be paying attention to where people are looking and see approach fees when people on but somebody can take this ability to exploit charging opportunities. one step further, one of the world's most intelligent spaces about this here at the tower of london. chris scaife is a human award, a position which requires at least 22 years of military service. he's responsible for looking off to these regal creatures. good morning, a to gaining the title of raven,
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most of the ravens have been here since at least the rain of king charles the 2nd done the 1600s without the ravens. so the legend goes, the town will crumble into dust, and grey tom will before the kingdom. and so that protection is central. the ravens of the largest spaces of colbert, with a wink span of blue most 5 feet, and a much larger brains than most of the boats. in the wilds these inquisitive creatures and successfully as in a wide range of habitats. thanks to the general list, dot. you think pretty much anything they can find the because of the great celebrity here that visited by millions of tourists, each you know that states and the ravens know just how to use this to their
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advantage. i'm always taken back by what they do and how they observe humans. they're watching this all the time. they lost food. that's what they were often that planning the day around what they can scavenging and very often with what they can steal, of course, as well. they work together. i can see them printing technically, how's it going to do this? and they use the crest as a bank and hide behind was a, one of them, the district and on the suspect can visited until they was ready to start. then a spike in big assignment dropped a bicycle for the last i can watch that, but it's actually planning on salt and i'm talking to each other about how they're going to do it. the ravens are intelligent enough to work together for food or say no. this collaboration will lead to a meal. i can both shop but some birds are capable of team. what?
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even if it doesn't lead to an immediate shrivelled adult to august phone buying from the max planck institute for the full. the truth is starting intelligence and cooperation in powers hair. it's laura park intent over there are around $350.00 known spaces apart, most of which live in complex sophie flux. although the brains are roughly around the size of a wall, not pirates power, no gray types and dolphins in the cognitive performance. and so they can be trained to carry out, come on well, goes to into team, have told african great parts to exchange tokens for food. but once the 6th strain show becomes blocked, how do they react?
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test septic receipts or the pulses f, one, spite experiments up, but without any opportunity for exchange. so it just gets the totals and no food, that's it. next door neighbor and it's 10 exchanging or paying for. but at the same time, it's next sofas. the part with the tokens doesn't want them to go to waste, so it pauses the tokens to which neighbor, at least they can benefit from the food. so we found that right parents, head of the individual is to achieve or goal without immediate benefit to them says and even was also an opportunity for us if for patients. and this is really a spectacular findings because such says this f m have only been shown in great a species in, in comparable studies. so in our closest relative ends,
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our finding is really the 1st report of a 1st, the coping in and among the median species. an explanation for altruism with a pump now is that the 2 parents become stronger as a unit so they can better take care of that checks. but for some reason, power at school. so help those who are not the pump is helping others to achieve a goal like this is very complex, as the individual must recognize when health is needed. and when both exchange holes blocked, the pirates with the tokens can understand. so the neighbor won't benefit from them . and so just trying to help the really hope that our findings will make it very clear that we have completed the estimates, it's in intelligence, and that's the. so if we got them a said that
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a, so to say, because they have amazing abilities that intelligence isn't always the key to survival when a rapidly changing planet sometimes district is to be adaptable. and once pieces of part is used, its adaptability to firmly establish itself as a new resident in new york. the rose ring in ring necked parakeet for the growing population of parakeets is also having an unexpected impact on london's population of power going focus edge village is a pirate doing research and he's come to this church in south london where a full paragraph and checks the just fledged often nesting on the spot,
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but almost at the base of the chat spot. now, where we can then go out and look for some pre remains to know the breeding season is over and can look at the remains of that prey to work on what they've been eating. ah, see what we got out here. then. testing paragons mean feel load the different stuff down here as lots and lots of white and gray federal pitching feathers. pigeons are usually the power of things go to pray, but one new come on is appearing more and more in the dog. the adults a catching power keeps. i'm bringing them back to feed. the grow intrigues it just
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hold on for heat all day in the power going dodge the large orange beaks, a shop and in the adjustable. and so we're left as evidence for it to on. so this very question, so what i'm doing here just looking for these, thanks to go out so you can see the bright green instead of the power teach, you know, when you see a place you can see, see how old is luminous green it is in this bright red beam. it's not known exactly how these pirates originating from asia and sub saharan africa, made some way to launch. the one theory is that they would kept as pets in the cities. some managed to escape. a may successfully bred that are now estimated to be around 8600 breeding past living in the u. k. pair. we're going to have a very wide don. they'll take whatever is an abundance a by these parents which uh,
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originally started reading in the u. k in 1969 and actually between 19952000 that population increased by almost 2000 percent. and because of so many of them in grades. so i'm done with finding that reading it power kinks of perhaps taking a 2nd off the place in the most east. and prior, during the breathing season, in the late 19 fifties, the population of power group full comes crushed due to widespread use of the pesticide d d t. the toxic chemical was sprayed on crops, poisoning the prey, and working its way up the food chain into the parent rooms themselves. this caused them to lay eggs with shelves of wood to fit for a clean number of the way so the incubating nato. once this link was named d d t was finally bind and the u. k. in the 19 ages their goods have since made a startling recovery. reaching whole most 1700 pads across person. more than double
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the population before d d t. as a result, that traditional coastal habitats have become saturated, so many have adapted to water urban environments can offer instead, the, all of these old bits of power thanks to his line i is up now is kind of going to be quite a few here. right? so i'm ready to count. now let's see how many we've got. okay, so let's go through 123456, and the 7 to the 8th and the 940 for 1. 88. it's 9. 19919191. so a little bit less than last year, but actually that is still a huge number one. so i thought i had this sheet i'll be watching on the web camera took $37.00. and also that was the last minute power keeps on coming in for some paul, the power we can talk,
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i bring that power seats continue to grady i out in some of the parts of england. and i think everyone's already that i'll probably be going to be doing even better than they already. all those type of things would have feeding on federal pigeons and stallings but as if you then add to bring that power kicked into the mix as a space is the, is, is all around the place, relatively easy to catch. then actually that's probably gonna increase the reading success phase, power goods, the, the power cage, and compare goods ability to adapt to a changing world is a hopeful sign that others may be able to do the say, the glitch, the better to do this. they must be able to learn from new experiences. it still does in humans and other mammals. a vital part of learning. specifically mation of members when dreaming the
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the talk to june, nina ongoing from the max planck institute for lona solar tree studies if but like us re experience daily events during rims, the states in which we might clean the, the budapest pigeon as transparent diamonds. instead of the movements of its pupils can be recorded when it is a close to a to study this at night g and nina must observe it on the infrared light, which the book cannot detect the softest switching on the infrared camera. she enters the avery to put the pigeon to bed on. it's got
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the where we're seeing here is sleeping pigeon. the pigeon is initially a non room sleep. its eyes are closed and is briefing regularly and is quite quiet . and then it enters into rooms needs. so the ice starts moving around and you see the pupils constricting rapidly store are sorry, we found out that these 2 for larry constrictions were specifically linked to this particular slip state through random sleep. we also showed for the 1st time that the pupils of pigeons are constricting during a courtroom during wakefulness. so because these people are restrictions occur
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during the day in seemingly during emotional states and the rear occurred during rims sleep. we think that the people are restrictions might reflect times when the brain is reactivate. a brain networks that haven't been activated during these emotional states and the brain is replaying and processing these information. the, we still don't fully understand the new or logical functions of dreaming ourselves . but studies seem to suggest that other animals use dreams to cement experiences from the day in the memory, and that from them from the bags and are rapidly changing. anthropogenic was disability to learn because of the 5 can you scale the. and there are many ways in which buds are responding to
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a changing planet. so again, into the opportunity to thrive in new habitats by accessing more nutritional food and resources such for many others. anthropogenic change is having the devastating impact. we think habits on populations around the world, the whilst intelligent and deductible, but learning to survive and unexpected conditions. there are millions of uh, tools perish with us all help because we know more about the edge and how to protect them. this whole future generations will continue to live alongside these magnificent creatures,
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the, to the point strong opinions, clear positions, international perspectives. both ends by default into and shows no end from being opened, the aggressive and you've trained to using hybrid metro's and companies like model law in georgia. on to the point we are discussing rich strategy as working better supplement to the point are in such
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a minutes. on d w. conflicts with him, sebastian, the chief prosecutor at the international criminal court surgery seeking arrest ones for his rating, heated for the coming back to the war in gaza. i guess this week from kind of leave is dennis ross, former special assistant to president obama, and for more than 12 years, keep trying to shape the us policy conflict. in 19 minutes, dw, the world of free speech, free press access to free information for every stop dreaming. next, take action. hello,
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dw global media for him. 2024 in bunch of any practiced in now, lots dissipates from all over the world to share their solutions. and to shape tomorrow, and join us and register now for the d. w global media for in 2024. the this is the w news, and these are our top stores, a germany 5, right? if the party has been expelled from the 5 right identity and democracy faction in the european parliament, this follows a series of scandals including one involving the parties lead candidate in the forthcoming european parliamentary elections. maximillian commas recently quoted the same and no old members of nazi germany. s s, but criminal view and general assembly has farther to establish an