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Dinosaurier - Wie sie wirklich lebten (2009) [Dokumentation] | Film (deutsch)

May 16, 2022
65 million years ago, these giants ruled the earth. We think we know what dinosaurs looked like, but can we really be sure because the fossil record contradicts our suspicions? New discoveries and intriguing techniques are leading researchers to a new understanding of the lives of young dinosaurs and when paleontologist Jack Horner is right, perhaps as many as a third of all dinosaur species didn't even exist, but now scientists are revealing that dinosaurs may have looked very different than we previously thought, the dino kos, how everyone recognizes a triceratops or a tyrannosaurus rex, but what was it like? their young, most scientists have assumed for years that young and adult dinosaurs looked alike, as lizards look alike. made research on adolescent dinosaurs one of his missions today, horne and his colleague marc goodwin proposed a new theory, they claimed that young dinosaurs were not tiny resemblances of their parents goodwin's 1987 study of bones that came from a dinosaur with a rounded skull providing information said these herbivores with incredibly thick skulls roamed Montana 65 million years ago you soon realize you're looking at something you've never seen before the first found skull of a triceratops cubs the triceratops dinosaurs the cretaceous cows too they roamed Montana the adult characteristic animals their long skulls and impressive horns are as well, but in assembling the skull of a young one is quite surprised that the young and its parents bear only a vague resemblance, which is the skull of our triceratops with the knot. we were very surprised by the expression of these little horns, the young is really very cute, it has very large eyes or a shortened face, the young animals of such specimens are observed curved, the neck shield, that is, the bone on the neck is it becomes very large in adult animals and reminds a fan already at this stage you can see that it is a triceratops although it is still very young although it is a great discovery that the appearance of dinosaurs has changed dramatically with age and more evidence is needed today Today, Horne and Goodwin explore the Montana badlands looking for potential dig sites.
dinosaurier   wie sie wirklich lebten 2009 dokumentation film deutsch
One of the consultants on the Jurassic Park movies made many famous discoveries here, but he's not the only one who made the first Terex over 100 years ago. was found nearby since then many spectacular fossils have been excavated from these sandstone formations. It is very frequent that we find specimens with a complete skeleton in the sandstone. This is the best conservation. Most of the really well-preserved specimens in museums have been found in sandstone excavations. and Goodwin search for triceratops bones of various types of ages to examine external features related to the dinosaur's growth, digging as far as few cry into unstable clay rock that expands when wet and most people contract when dry. you don't look around because usually you only see individual bones here you find this is a good example it looks useless and won't even be picked up your persistence pays off they are great a decade from now they dig up twelve skulls of adolescent triceratops cubs and they arrive at the current find they divide into a total of 13 what is this specimen in many individual pieces these are the horns over the eyes so the eye must be here this here is part of the nape shield and this is the flaw in another part of the nape shield this here is a lower jaw I'm incredibly excited because it's exactly what we're looking for scientists used glue to hold the individual parts in place 1 then the skull is secured by a surrounding plaster of paris box transport when the team analyzes the skulls startling discoveries come to light this is a neck flap from a young triceratops you can see it is very wavy we have found the bones with the three vertices sitting exactly on the nuchal scute we knew but the adult specimens show none of this triangulation in the nuchal scute area the newly discovered horns reveal yet more than us horns of young dinosaurs the first time many saw us s immediately the backward curve of the horns in that is strange triceratops is known for its forward pointing round horns we knew something was wrong maybe its discovery is from a completely new species or its discovery has something to do with sex, male specimens still t They had forward-facing horns, while females were equipped with smaller, backward-curving horns, and well, if you don't settle for those two guesses and instead state something unimaginable, maybe the horns of a young triceratops were later on. choked on the back and turned forward.
dinosaurier   wie sie wirklich lebten 2009 dokumentation film deutsch

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dinosaurier wie sie wirklich lebten 2009 dokumentation film deutsch...

As they grew to investigate, this was an innovative technique. Turner looks at the bones from the inside. This method. Others were reluctant to warn about past clients. if we look very carefully we notice that there is a different amount of bone substance in the middle of the wine when the bone changes shape there is a deposit of bone on one side and on the other side there is bone erosion this is proof that the bone its shape changes scientists discoveries are the first of its kind and reveal growth related changes in the triceratops i am sitting here with the young animals as you can see the young just have little blunt horns and a chosen neck guard with the following larger young here are the haaners that come directly forward and protrude and along the nape of the shield the three angular bones fall, here you can see one that is already larger in front and we have a skull outside adult specimen the horns already they are fully displaced forward and the three angular bones are much flatter they eventually reach the point where the bones can no longer be seen at all.
dinosaurier   wie sie wirklich lebten 2009 dokumentation film deutsch
External features of the triceratops changed with each stage of life but this discovery raises a new question why its features, and especially its cries, underwent such major changes. What were they used for? Scientists believed for many years that triceratops used their Horns look dangerous in battles against Terex, but Horner and Goodwin aren't so sure that the youngsters needed the most protection, but moving back, the horns are useless for defending themselves. Some researchers also believe that male Triceratops practiced using their horns in single combat to impress females or to demonstrate superiority, but Horner and Goodwin question this for both males and females. female chickens had horns it is said that humans used their horns for fighting my question is where did the females horns win and well yes further discovery also provides a reason to question the fighting behavior of triceratops using horns this is the horn of a juvenile triceratops if you look from below you will see that it is hollow and this cavity becomes even larger in adult specimens the horn would probably break then they would have suffered damage that you would also see in the fossil remains but in reality such a thing is not observed borna has more evidence, practically speaking, it would not be logical if the triceratops were against a terex, you just have to imagine what would happen if the fritz finished off his horn in a former animal edge where if the body of a track would fall in that case of natural origin from the head of the triceratops, therefore the head is more suitable for organ placement if the horns were not used for defensive purposes what they were for then the reason for the age-dependent appearance remains a mystery, but scientists are yet to discover this in another dinosaur species strange transformations after a decade of study, paleontologists jack horner and marc goodwin make a discovery groundbreaking, proving that triceratops evolved a lot as it grew, but how does it compare to trex and the other species that inhabit america's swipe horne stumbles upon a clue when about to examine a group of dinosaurs also native to montana the dome-shaped skull parity dinosaurs allosaurus had a large, thick, dome-shaped skull with bony protrusions all over the m The Moloch had a smaller one with spikes about 15 centimeters long on the back of the head related with the.
dinosaurier   wie sie wirklich lebten 2009 dokumentation film deutsch
In 2006, paleontologists discovered an even smaller dinosaur with a domed skull resembling a fellow Hogwarts School of Witchcraft and Wizardry in the Harry Potter books but when Horner first sees it, he is almost shocked by what he sees. All three animals have nearly identical humps on their noses. I received a phone call one afternoon from Jack and when I heard that I like luzak, after that there is a long pause in which I wait for the question, then I would have what do you think about the sticky giant and I replied, do you mean that at this moment you left Drop the bombshell by asking if you could get rid of moloch? a young patrician wonders if the assumption that the three specimens are different species isn't wrong and instead the same dinosaur is in a different setting.
Jack so the next devices are a draco rix that was once timo loch and this is a pahl zeballos august if you look at the front of these dinosaur skulls you will see it. look they are basically identical they are the draco rex is in a juvenile phase and doesn't have a coupe type skull yet the moloch is in the super third phase where the domed skull is slowly forming and the august parsifal is fully third instar adult specimen with a large cap when goodwin first heard horner's guess i was skeptical because there was a big problem i said yes and how do you interpret the horns on the back of the skull the biggest challenge the drake presented us rex Were its large spines and rear head area gigantic during stimulation and only so small during the process? the humps are visible the question is how the spines disappear losing a spine about 15 cm long seems impossible but with triceratops horner was also able to prove that the wavy notches on the nape of an adult specimen had receded by horn we -colleagues is this theory a shock three different looking specimens could belong to the same species many people are not happy about that at all i mean people gave the species their names and of course they are not happy that they are disappearing again and it is even possible that it will overturn some of the species i have named at some point it is an intriguing theory but needs convincing proof the first clue is the age of the skulls this dome shaped skull is from a spur and appears to be an adult been a dinosaur to see Because the dome-shaped cranial roof consists of a piece of bone, the highly thickened cranial roof of dinosaurs ju veniles generally formed from two bones in the frontal area, which grew together to form a heart in adulthood two individual frontal bones making it a juvenile specimen and giving us evidence that young dinosaurs actually they lost their horns if you look at the horns of the draco rix you will see the same features that can be observed in the paracelsus they are located in the same place and differ only in Horner believes that he has just discovered what could lead to such a change in the skull.
Evidence he recently found suggests that his facial features were formed from the same type of bone that is responsible for the formation of the hump on his back. from kr Dinosaurs have very special fibrous bones they grow very fast and change shape very easily under these circumstances the dome shaped skulls and spines can grow quite fast and also recede quickly this is really amazing it looks like if you get three confused species with dome-shaped skull roofs, they actually turn out to be just one like triceratops these young specimens also undergo strange changes but why do young and adult dinosaurs differ so much in their external features researchers are tackling the question of why a dinosaur should have a large dome-shaped cap in the first place for years researchers assumed that dinosaurs with domed skulls used them to frame behavior that could be clearly deduced from the thickness of the skull is the skull of an august parsifal in some specimens should have about 25 centimeters thick or paleontologists believe that it served as a kind of shock absorber, their theory was supported by the discovery they made regarding the internal structure of the gas in the skull.
These w have a spongy consistency and could have had a cushioning effect in the event of an impact with the heads, but when Horner's team examined the skulls of the young and adult specimens, they found something else: the spongy consistency is actually found in the young specimens, that is, on the roofs of the skull, the fast-growing subject if you see the cap of an animalAs an adult, you will see that it has a solid texture and is made up of very dense and brittle bone tissue, so they could not have run into each other. head as this would only be possible once after everyone involved would have been incapacitated well if you decide to continue the investigations with the comparison of the skull of a parits eva lohse russ and one of the sharp grain the skull of a thick sharp has a chamber of large air directly under the cap of the skull in your case this helps an adaptation to mitigate the impact of head to head contact when opening the skull of a park eva lohse russ we discovered that the cap is a solid bone substance from the inside head butting with this type of skull they would probably have been fatal to the paracephalus of for those involved it all remains puzzling if the domed skull roofs and horns were not used for combat purposes what they were for then the team is stuck with their assumptions for now the bones won't get you any further for Now the answers to this will provide an unusual source which must mean what e the only living descendants of dinosaurs.
Paleontologist Jack Horner hopes to discover why dinosaurs have unique characteristics at each stage of life. The answer to this does not seem to be found in the fossil record. so you are also planning the living descendants of the dinosaurs under the birds look but how do you find the connection between birds and dinosaurs their skeletons show a lot of similarities when you look at a chicken claw you realize it consists of 13 the longest c is on the medium and the spur serves to hold you tight If you look, if you use a Terex, you will find the same characteristics in front of the 13, with the middle one being the longest and a sport for the festival.
They're basically identical, but the connection between birds and dinosaurs runs much deeper in 2005, do evolutionary biologists John. falls and matt harris while studying a mutant strain of chickens an astonishing discovery about genetic linkage looked at the embryos and asked me to look at the specimens found last night thought the embryo was 10 and they both thought it was pizza we knew the birds hadn't had teeth for seventy or eighty million years i saw this one but we discovered cone shaped structures here you can see one of them here the second and here the third if mutant birds have scenes that's one thing but cases and harris suspect that even common birds under certain circumstances are genetically predisposed to have teeth. in the embryonic stage to find out put a virus in the beak of the embryo the chances of it becoming a toothed bird estimate one in a million but when you look at the embryos you are surprised we found on them enlarged and protruding bumps on the front of this experiment This unusual study shows us that teeth could also form in ordinary chickens when scientists remove the beak from the embryo.
You can see the shape of the teeth. They are curved like those of alligators, and the animal's teeth can become bird's teeth. It seems impossible unless Birds are known to have descended from the same group of dinosaurs as the T-Rex, according to therapists, some of these modern-era dinosaurs today are still carnivorous. of birds contains the characteristics of dinosaurs, then it is possible that they are more closely related than we thought possible there is more evidence that the DNA of birds is that of dinosaurs in 2007, Horn's colleague, paleontologist hans Lassen , he found another hidden compound in his lab at mcgill university he was studying the development of common prions in a 16 day old embryo he noticed some vertebrae in his tail here we see a imrio chicken about to hatch and on a very short tail, Mom finds about eight mobile vertebrae but with a five-day-old embryo, that is, an embryo at an earlier stage, she makes an observation that no one has been able to make before, we see that the tail deviates a lot from the norm, as there are already 16 at 17 visible and even more they have not formed vertebrae that are recognizable as normal this is not that far from droh mails and velociraptor these animals have around 20 vertebrae 20 21 22 modern birds rnas therefore have only a few fewer vertebrae this provides even more evidence for this that we can learn more about dinosaurs by studying birds to see how closely they are related to each other lars tries to reconstruct the steps of evolution backwards he wants to see if the result is a chicken with a dinosaur tail at first he prepares the tails of the embryos with genetically modified proteins because he suspects that this encourages the growth of new vertebrae fo after an incubation period of a few days, he also tests them, because normally chick embryos have around 16 tail vertebrae by day 5 this specimen already has 18-19 tail vertebrae so this leads to tail extension now it is still a matter of time how we do it an experiment until longer larsson believes that a few simple genetic changes produce another trait found in a you see and dinosaurs a young embryo has a hand at the point where the chicken will grow a wing on the 7th day of development we notice that the bird had 3 fully developed fingers but these 3 fingers are separated from each other just like in dinosaurs why do birds today carry genetic material from dinosaurs that is responsible for the formation of teeth, long tails? and hands the answer is provided by the surprising new low Genetics Research Scientists' discovery shows that vertebrate body shape is due to a small number of common key control genes, so some genetic changes can have big effects, and closely related species share similar genes than we have ever been able to. understanding the room of these genes themselves more or less in relation to the appearance of dinosaurs and birds, the big difference is how the genes are controlled and make themselves felt due to genetic relatedness, according to Horner, it will be possible in the next decade by post-construction Breeding an animal with the physical characteristics of a dinosaur would require scientists to genetically modify a larger bird only slightly.
The simplest dinosaur-powered project would be to genetically modify the bird to have my longest tail. He will grow up with three fingers and three toes. I believe the characteristics of a dinosaur are the close genetic relationship that leads to Horner's belief that birds are angelic in many aspects of appearance and even behavior of dinosaurs. My observations have found that the behavior of birds. is similar to the most similar to dinosaurs than we ever thought possible to finally solve the mystery of why dinosaurs looked different at each stage of their lives. Horner will base his observations of birds on his discoveries that will revolutionize our understanding of dinosaurs 65 million years ago. that was living in hard montana, it was often about kill or be killed if the lord doesn't serve as protection and the domed cap doesn't muffle the headbutts, what sense and purpose do you have the answers that researchers look to the descendants of the dinosaurs the birds the first important observation is t that some birds may have developed other characteristics to distinguish them from related species recognition between species plays an important role that they need to reproduce with their own species it is also important that they recognize their own species some Species are not different just by colors from others but through decorations on their skulls like this rhinoceros bird in nashville that could solve part of the puzzle the crest on the head of the rhino bird is a very similar feature to most dinosaurs of these externally visible features existed dinosaurs made of bones one The reason for dinosaurs' oddly shaped skulls and horns might have been recognition of their own species, but why are young specimens so different from adults?
It seems that even young birds look different on this young rhino. its head has not yet reached its full size a growing rhinoceros bird has the characteristics of a young bird and does not yet have a head accessory only when it has reached three quarters of its maximum body size does the accessory begin to grow this element has a signaling effect in reckingen this is how an adult recognizes it rhinoceros bird a younger specimen and the juvenile in turn an adult specimen a juvenile and an adult triceratops can differ greatly in appearance for the same reason that the baby has eyes large and a short snout this can also be observed in the chicks and these are the same traits that give other young animals such as birds, worlds and kittens that typically cute appearance the appearance of a young triceratops triggered an instinct in its parents to lend it attention and the backward curved horns were a feature of slightly older adolescent specimens which is important to note tell other members of your own group that you are not a fully grown specimen and still growing, lest you be eaten in potential dangerous situations, as the small, backward-curving horns do not signal any threat due to the specific appearance of the horns.
In young specimens, Horner believes that parents in their young accompany the juvenile phase all the time, and the forward-pointing horns of an adult specimen was a sign that spoke for itself. It signals to other dinosaurs that you are no longer in the juvenile phase and may be looking for a mate and the fact that we notice these marked variations in growing dinosaurs gives us important information we need to reconsider our old image of dinosaurs as lone killers and ruthless dinosaurs may actually have been less aggressive than before I thought they were f Loving parents lived in groups of adult and juvenile specimens and were highly social animals.
Horner believes that birds may have another dinosaur characteristic long before birds first appeared. Dinosaurs used to identify their own species and the age of each specimen. colors even the scaly skin of a dinosaur may have been shiny like the skin of this house and the triceratops was perhaps the most colorful dinosaur of all the evidence is its nape shield a distinctive feature of the triceratops nape shield are these glasses embedded blood vessels that are nearly notched into the bone during the growth phase while others ignored the notches, horner decides to examine various animals for these grooves here is the plaster shell of a sloth's claw the notched blood vessels in the claw are an indication keratin is the substance responsible for the formation of claws, horns, and nose beaks, the entire head is already surrounded by a layer of keratin to find more clues as to the color of the keratin layer, horner re-examines a birds and discovers that the keratin on their beaks and heads is often particularly cool the colors of the rest of the body give Horner an indi In addition to the external characteristics of dinosaurs, young birds are inconspicuously colored and while adult specimens, humans are very brightly colored, females are technically more inconspicuous and dinosaurs surprisingly, scientists cannot tell from the dinosaurs. fossil remains whether each is a male or female specimen, so it is likely that they also differ in color, while the males may be brightly colored many of the females with inconspicuous colors, it is even possible that the males in breeding season mating have bright colors n when it attracted the attention of other people, Horner finally believes he is beginning to correctly interpret dinosaurs' external features, such as birds, the most oddly pronounced features of dinosaurs, a pointed head and a flattened-shaped cap of dome, which serves only for purposes of visual communication of a n adolescent parits eva lohse russ pointed out her young age to her peers larger spines indicated a juvenile at the adolescent stage and in adult specimens the cap deformed into a large dome-shaped cap after the spines were completely removed this is not should be used for fighting purposes they are good but to attract potential breeding mates scientists explain triceratops aura only a few animals had to defend themselves each year but males relied on annual courtship behavior hermann triceratops offspring were very useful to be endowed of certain externally visible features, such as a peacock strutting its horn rather than daring to use it to fight, and some specimens, oddly marked features had an attractive effect on dinosaurs with potential breeding mates.
Triceratops horns and dome-shaped skull roofs may have looked different at each stage of their lives, but scientists investigating aanimal digression are about to discover an even bigger surprise: the tyrannosaurus rex was the most aggressive of the dinosaurs, it was five feet long and about a meter wide but a t-rex cub emerged from a small visa and they were already young such an aggressive arrangement new fossil remains reveal changes as an adolescent terex went through its life. young animal until 1980. at the cleveland museum of natural history, scientists later examine a skull unearthed a few years earlier, which was assigned to a russ gosau. new.
It is an adult but smaller tyrannosaurus known as nano tyrannis. In 2001 researchers discovered the second of only two nano tyrannis specimens found as of Saturday they are nicknamed nano tyrannis by scientists the dinosaur is very different from an adult terex these smaller animals were soft, small and much lighter in comparison with a car they were more like a lamborghini than a dump truck tyrannosaur expert thomas karl besuc visits the cleveland museum for a closer look examines the skull over several days, measuring each feature of the animal and noting that there are some differences that indicate it is not an adult specimen the snout is very flat the teeth are aligned closely together and the eye opening is quite large these are typical external features of a young animal, also note features that are similar to those of the animal, such as the narrow snout, so even you think this is the first ex young animal however there is a clear reason why you don't it may be the same species while the nano tyrannis had 17 teeth the terex was only equipped with twelve or thirteen teeth and some scientists believe that dinosaur teeth fell out with age jack horner also has some guesswork to correctly identify the nano tyrants will have to find more terex specimens but one track skulls are extremely rare to find until the year 2000 only 21 skulls were excavated of which only a little over ten percent were fully preserved and these were exclusively animal skulls adults after finding Horner, however, five specimens in a single season.
I found one about five miles from here and another found about a mile that way. a radius of about 30 kilometers one specimen is a juvenile no one would have thought they would ever find it is larger than a nano tyrannis but smaller than an adult tyrannosaurus rex and only has 10 10 in its lower jaw compared to 17 10 in a nano curanus, he has less however more than a t-rex he is 12 10 he is a growing specimen for horner the evidence is clear the t-rex lost teeth with age and tyranny nano he is a terex super buck the skulls reveal other key changes the smooth noses of the young the animals become knobbly over time the many notches and holes they form at this point could easily be mistaken for disease in adult specimens the bone above the eye was also very prominent the massive bones above eyes and a knobby nose could be an agreement with this theory.
Not all scientists agree, but Horner and I may believe that a super large specimen had a somewhat elongated skull. or similar is also true for predators watching it grow into an adult t it grew massive bones over its eyes and feces and its long narrow skull changed shape, becoming large and broad the resulting size of its massive jaw made it easier for it to ingest large amounts of food can carry up to 50 kilograms of meat Ten years ago, Horner surprised his colleagues by claiming that the terex was a scavenger and not a fearsome predator. He believes that regrowing teeth provide further evidence of the new.
That is, the teeth that grow back were big, round, and strong. Thus, over time, a juvenile terex acquired huge teeth and could even break bones like them, and the six youngest specimens also looked quite different. Incomplete remains suggest that a three-year-old cub, like small predators, also had a long d. ünnen schede had a smooth snout and longer legs overall, they were very graceful animals and almost indistinguishable from other small carnivorous and currently living dinosaurs and what did the older specimens look like? The largest skull found in Horner's collection to date measures around five feet. It lived for more than 30 years and was 13 meters long from nose to tail.
Horner believes that the oldest dinosaurs grew more slowly but steadily, but our chances of finding them are slim, since very few dinosaurs reached old age, whether or not we did. I don't know what the maximum height of a trick is and it's certainly possible that they are much taller, but it's true that their faces got smaller as they got older and the features of their skulls kept changing in retrospect. It makes sense why should I? We didn't think that the external characteristics of the egg As dinosaurs depended on age, we never saw it from that perspective because no one suspected that its appearance could undergo such changes.
Horner suspects that eventually the world's apes could decline by as much as a third if we start studying them this way, in my opinion. we will have to cross off many species of dinosaurs from the list to gain a new understanding of life for dinosaurs just like us humans, dinosaurs also went through many different life stages and each stage between birth and death was unique in its own way

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