Mystery in Yellowstone: the Disappearance of the Elk

The documentary leads along the river bends of the Yellowstone National Park to unravel the mysterious disappearance of the elk. Once tens of thousands roamed the valleys, now fewer and fewer elk reach their winter grounds in the northern ranges.
The film follows three researchers on their investigative journey to solve the Yellowstone puzzle: An elk biologist, a grizzly bear expert, and a specialist on the infamous lake trout - an invasive species to the National Park.
With the help of ground-breaking methods they discover previously unknown connections between grizzly bears, lake trouts and elks and thus grow to appreciate the complexity - and beauty - of one of North America’s most famous National Parks.
Director: Manfred Corrine

[@nawimabo2359]

Perhaps one of the best documentaries on nature I've watched

[@johndewey6358]

Great documentary with a big lesson for human beings. I am glad to see the mystery is solved.

[@tomhermens7698]

Well done to all those involved. Very clever bringing the system back to balance.

[@ronaldwhite5670]

Excellent, very interesting, informative. Thank you for your dedication. To all concerned

[@rakeshpandey4929]

Wolf wasn't the cause of the decline of the elk, but the illegal introduction of the lake trout was. I am glad to see the mystery is solved. Really a big lesson for us.. we are culprit.. are we practicing it even now ..

[@jandrews6254]

When wolves were eradicated in Yellowstone, the elk numbers exploded. Wolves were imported from Canada to repopulate the park and contain elk numbers. The trade in beaver pelts caused such a steep decline in numbers that the lack of beaver dams allowed the ground to dry out. Maybe micromanaging things that are imperfectly understood without careful consideration of the ramifications of an action BEFORE it is taken would be best?

[@PauloCalgaro]

👋👋👋👋👋 Excelente!!! Um trabalho de muita paciencia de biologos determinados! Abraço Bahia - Brasil

[@jansleurink151]

amazing research, everything is connected to each other

[@denisoconnor6343]

Brilliant documentary

[@isabelcarbonellsalinas3704]

Cada vez que el ser humano interviene la naturaleza provoca la desarmonizacion de los ecosistemas. Somos los mayores y peores depredadores naturales de este hermoso planeta.😢

[@arlindoribeirodasilva5219]

Je suis très contant des effors des cherchers americaeines!! Impressionante!!! Au revoi...... Saludos desde brésil!

[@excolo3290]

Error in french version, for us it's a kind of deer (or simply wapiti) not an elk as for the brits, only americans named it elk (élan in french), and moose what we call elk.

[@mar6372]

Amazing documentary, needs extra ordinary effort to conserve the wild life in sanctuary and parks. Research plays a great role in doing so. Appreciate that effort. Humans should be more concerned as the BIG DANGER is closing up fast know as climate change.

[@Kallumsworld]

Climate change is non existant.

[@chrical6923]

Merci à toutes ces personnes qui se battent pour la biodiversité et ses causes...

[@cristinadelemon6019]

Thank you for the documentary film, very informative 👍

[@TaniaMaraKnorr]

Vide9 maravilhoso ,aprendi coisas novas e interessantes! Do Sul do Brasil, abraços

[@franciscoabreu1529]

Maravilhoso. Belo trabalho.

[@GillesChmylko]

Très riche reportage merci

[@ClaudionelCarneirodeSouza]

Uma das paisagens naturais mais lindas do mundo!

[@lindacooper4893]

Great video, what a shame that man has really spoilt all the land ❤❤

[@anelreina9653]

Como algo que a muchos les parece simple puede afectar todo un ecosistema, excelente trabajo de todos esos profesionales y científicos

[@hessulenedemoraes1447]

Lindo documentário, obrigada do Brasil

[@naturezavidaes]

It was an incredible journey that not only sheds light on the decline of the moose population but also highlights the importance of balance among species.

[@isabelalvarez6464]

Que gran investigación,me alegra saber quién es el culpable.😊😊

[@robertvancina5357]

Where ever humans intervened and altered natural balance results are devastating. I am living in Australia and here are numerous examples of that! In every stage of our evolutions we think we are able to outsmart nature and its rules. When will we learn???

[@renivaldoalves1651]

Verdadeira aula de biologia esse vídeo gostei meus parabéns eu muito agradecido vou deixar meu like ❤

[@pablovalleospina3839]

Magnifico documental , la vida silvestre en este maravilloso parque y la gran preocupacion del gobierno por su buena conservacion ,algo de las pocas cosas que admiro de este pais , si algo parecido hubiera en las selvas de america del sur no habrian especies en peligro de extincion pero los gobiernos no le dan la debida importancia hojala en un futuro cercano esto cambie, hermoso documental .

[@rachelmurray1228]

What an interesting video. Thank you for informing us on why the grizzlies are killing and eating the poor baby elk. Unbelievable reasons but true. I learn so much from your videos. Thank you. Of course the main culprit is man. That is a culprit thats 90% responsible for everything going wrong.

[@beeunderattack1101]

l'excès de tout nuit, donc l'excès d'humains aussi.

[@jandrews6254]

So the decline of the white pine trees due to infestations of beetles is caused by climate change? What predator of the beetle has been decimated, to allow their numbers to proliferate?

[@imransharif443]

Nice video documentary

[@nivdel]

Documentário muito bom, parabéns.

[@RULDYMARYLINHERRERARIQUELME]

Muchas gracias por compartir me ha encantado como hay esperanza aún

[@bernieshort6311]

Outstanding.

[@tonyryan43]

"Man" is not to blame. It is certain individuals who are to blame. As is happening in other ecosystems in the world where devastation has been caused by stupid and arrogant scientists who are grossly outside their familiarity zone, they took action which to their petty minds seemed intelligent but even your average farmer would have called for caution. The worst instance of this was the PhD scientists who operated a park only one third smaller than Yellowstone... Kakadu National Park in north Australia. Their first error was to take advice from acculturated former cattle station Aborigines and this precipitated vast fires that wiped out entire ecosystems and one third of our northern Cypress. This also caused the deaths of animals and birds who live in hollow logs and trees, ironwood in particular, which burned so fiercely that the teeth and bones of animals thus incinerated, turn to ash and are therefore not known to have died. Thirty years later, these same scientists plagiarised my research which proved them at fault. But this did not happen until gullible scientists in Yellowstone and other US parks, swallowed their mantra that "fire is natural and good" and let these go out of control, destroying entire plant species and damaging soils. But even before this, similar scientists introduced the cane toad into Australia, which is continuing to decimate entire species in the hundreds. Hundreds of plants brought in by other scientists, agronomists, have wreaked havoc and actually eliminated wetland ecosystems on a vast scale. Get the message? It is not "man" that is destroying our planet, but irresponsible scientists who are so corrupt they can be bribed to mandate AGW despite 1700 of the world's top climate scientists condemning this. By my reckoning most of the catastrophes effecting humanity and life are caused by scientists, the most recent being the toxic gases and heavy metals that damage life and the ozone layer with every single launching of a satellite... hundreds of square kilometres each time. Yet this documentry presents scientists as the saviours. Propaganda; nothing else. Meanwhile gullible and dimwitted readers are sucked in by their transparent assertions. Happily, some scientists are equally outraged and the guilty will one day be held to accountable.

[@harryhole5786]

Same has happened in the 1970th in Réunion island, were some "scientists" from French Cirad wildly introduced species to improve cows-feed that proved to be invasive. Nowadays there are no cows anymore, and their invasive species gain ground each year. Another good example was the introduction of Cryptomeria japonica, a needle tree introduced from Japan by ONF, that was massively planted in the 1950th: to serve as fuel for the sugar mills. Today the trees a ripe: but there is few use of it: because sugar mills have longtime ago changed to diesel, or other fossil fuels. They cut them down and leave them rotting in the place because they planted as much in the 1950th they cannot get rid off them anymore. But those guys that did this, lived their lives, were the glory man and still believe in their shitty-work. We have 3000 introduced plants, against 900 native that remain. Dumb at work. Rainbow trouts had been introduced also in some rivers: they finished with anything native from our island, including endemic species.

[@thierrywalther6603]

Enfin une bonne analyse bravo tout est dit

[@tonyryan43]

@@thierrywalther6603 Merci, Thierry.

[@madmas2798]

There is a proven correlation between the introduction of wolves and the decline in elk numbers. Defenders of the wolf would have you believe that there are other reasons for this decline. Of course, the trout problem is real and the battle to re-establish an ecosystem is commendable. But I can't believe that the decline in trout is the main reason for the decline in elk. It may be contributing to it, but frankly....it's twisted! Bears are omnivores, so they have plenty of options other than attacking elk fans, which are hard to detect despite their sense of smell. Science has a nice ring to it! The convergence of factors is obvious, but it's certain that the wolf is playing a major role in this decline. Yellowstone is the greatest natural fiction novel ever produced. We are told everything and its opposite.

[@tonyryan43]

@@madmas2798 I can relate to your scepticism. Good for you.

[@dinkohrvat344]

Yellowstone is just a tourist centre now . Just maintained as a large Disney Land like Zoo for public entertainment . .

[@madmas2798]

For all those "nice scientifics", the nature is a great Eden Garden with perfect balanced ecosystems that can be just destroyed by human being! It is a biblical fiction told to children to lull them to sleep!

[@jaimesanchez5384]

Muy buen documental, sólo que esos no son alces sino wapitíes

[@arturo817]

Exacto, en Estados Unidos llaman elk ( alce en inglés) al uapití y al alce lo llaman moose

[@danielroche344]

Ha oui je comprends mieux l'erreur du comentariste . (Ha si , asi entiendo mejor porque el comentarista se ha équivocado .)

[@touchofgrey5372]

Nobody is calling an elk a moose! BUT.......There is moose @10:03 ! ! !

[@arturo817]

​@@touchofgrey5372 En este documental, que yo veo y oigo en español, no se usted, se llama alce (alces alces) al wapití (cervus canadensis) por un error de traducción ya que en inglés británico elk es (alces alces) y en EEUU elk es cervus canadensis, y al alce (alces alces) lo llaman moose

[@touchofgrey5372]

@@arturo817 MORON!

[@GBnvi-uh6si]

النظام البيئي مترابط جدا وكل مخلوق يؤدي دور في السلسلة الغذائية واستمرار الحياة اي تدخل بشري د ولو صغير يؤدي الى انهيار النظام البيئي

[@Williamsilva-ef5bz]

Todo declínio d população d qualquer ESPÉCIE E TODAS ESPÉCIE Q ESTÃO EM RISCO DE EXTINÇÃO, NÃO PRECISA D PESQUISA PRA SABER Q SÓ HÁ UM CULPADO. O HOMEM E SUA GANÂNCIA

[@MauroMeneguzzi]

Lindo vídeo 📹 obrigado por compartilhar lugares lindos natureza é incrível como é fantástica ❤😊

[@desi_patriot]

One of the BEST DOCUS that I've ever seen.. So educative and interesting

[@AlexAlex-rz7qs]

Muito bom esse documentário

[@gilbertoivogarcia260]

isso e incrível o filhote recém nascido quase nao tem cheiro ,a natureza e muito sabia

[@jendenzonbelen6880]

Saludos desde Rrp. Dom

[@laurentwolf9289]

Superbe documentaire, dommage que la traduction synthétique gâche tout

[@harryhole5786]

For Europeans, these are Waipitis: wikipedia: The elk (pl.: elk or elks; Cervus canadensis), or wapiti. The European elk refers to Moose in the Americas.

[@franciscoxavierlimabarbosa9237]

Um detalhe, a truta lacustre foi introduzida no lago Yellowstone pelo homem. Portanto, esse é o culpado pela desorganização da cadeia alimentar.🤔

[@dieterweidhofer7606]

excellent

[@Franky46Boy]

So the introduction of the wolf wasn't the cause of the decline of the elk, but the illegal introduction of the lake trout was...

[@telmavelloso3693]

Esplêndido vídeo ❤

[@27sk44ma59]

C'est un beau documentaire, mais la version française reste un peu compliqué par moment à comprendre, il faudrait revoir la traduction.

[@HosseinMasouminiya]

Ok thank you 👍❤❤❤

[@BeatrizdelCarmenMelendez]

Demasiado bien 👍👌👏

[@katgrizzly6861]

Quand les humains nommés scientifiques arrêteront de se prendre pour Dieu et feront leur travaille avec plus d'humilité.....Mais ce reportage est encourageant car il montre une réelle volonté de trouver la source du problème et d'y remédier. Quant aux autres, ne rejetez pas dans la nature pas des animaux venant d'animaleries qui ne vous amusent plus ou qui vous dépassent (tortue de Floride par ex) Idem les pêcheurs.

[@isanavarreta7882]

Es lamentable que la ignorancia y la estupidez humana sea la culpable de desbalanze de la naturaleza .😡

[@andrevaccari2345]

No país da ignorância, traduzir um documentário sobre alces sem aparecer nenhum alce é amplificar a burrice. Triste Brasil do Paulo Freire!

[@montse8936]

Habláis de alces y son ciervos, o un tipo de ciervo. El alce es mayor tamaño y no son tan gregarios como lo que nos muestran aquí. Habitan, es cierto tierras frías, pero sobre todo norte de Europa. La cornamenta es diferente.

[@danielroche344]

C'est un problème de traduction , je crois , vu les autres commentaires .

[@renivaldoalves1651]

A atriz principal a truta assassina e a atriz coadjuvante a truta lacustre, essas trutas poderiam ser criadas aqui no Sul do Brasil Paraná em algumas partes e em Serra da Mantiqueira SP ❤

[@franciscocarlospopriaga7457]

Acho que seu Qi é menor que 78. Assistiu o vídeo e não entendeu que não se deve introduzir espécies exóticas no ecossistema local? Não entendeu que isso foi o que que fizeram ali que desequilibrou o sistema e quase levou outras espécies a extinção?

[@محمدسالم-س8ه3خ]

وثائقي رائع ❤❤

[@wagnermejia6416]

Esos no son alces, bueno el documental pero dan información incorrecta sobre el animal objetivo del estudio

[@andrekuh3956]

YEAH IAM VERY CONCERNED ABOUT THE SUDDEN DECREASE OF VERY BEAUTIFUL ELK NUMBERS

[@aryspereira]

Não são alces são na verdade UAPITI, também conhecidos com cervo-canadense com o nome científico de Cervus canadensis. Já o alce que é o maior cervideo vivente com cerca de dois metros e quarenta de altura e três metros e dez de comprimento tem o seu nome científico de Alces alces.

[@Winchester1876]

La especie que aquí llaman erróneamente alce es probablemente "cervus canadensis" (uapití, wapiti), el segundo cérvido en tamaño después del propio alce (Alces alces). Si al wapiti le llaman alce, ¿cómo llaman al alce?

[@eduardoeduardo2118]

Muito bom.

[@Hazendal777]

Ask the " government " 😢😢

[@wolfganggugelweith8760]

What’s about Sasquatch there?

[@julzhepburn3688]

The introduction of just one foreign species can do huge and mortal damage to nature ,as seen in the release of one mink breeding farm by animal rights folks ,which has caused the lost of all the stoats and weasels in SE england,,😢😢😢😢

[@nataliavilla5374]

El lobo es absolutamente necesario para el ecosistema Los lobos los mataron por los mitos de la gente que eran peligrosos para el humano Pero estaban equivocados Los lobos son hermosos y su corta vida es impresionante

[@davidmontgomery9194]

The term 'murder' is inappropriate for the animal kingdom. 'Murder' is the unlawful killing of a human/s by a human. Incorrect use of language dilutes the quality of the documentary, which could have been 'excellent'.

[@josenodiermejiarios7925]

Dios te bendiga por este video q contiene la creación de Dios es hermoso

[@thierrywalther6603]

Ce n’est pas des élans mais des wapitis

[@Kjuken69]

Moose has darker coat and lager noose! Alces alces in latin. In Europe it's called both i think ELG on Norwegian and swedish, elk is more rightly a large deer!

[@LR-sn9gt]

Leave to humans to make a mess of nature. Hopefully these better humans can put it right.

[@RUHappyATM]

Can someone drive from California to Yellowstone NP for camping, as shown by 2012?

[@alvaro._.samudio.]

No sé si se tradujo mal o algo asi pero para mí el alce tiene los cuernos en forma de pala y es mucho mas grande, disculpen si estoy equivocado pero ya me perdí!!😊

[@centurione6489]

Two decades ago the land was teeming with elk. Two decades ago wolves were reintroduced Two decades later elk are gone 🤔🤔🤔 Lake trout were introduced at least 40 years ago. Besides, elk in the northern Greater Yellowstone (far away from the Yellowstone lake) are decimated, too.

[@gigiluigi6359]

What about hunter and trophies?

[@gabrielhofstatter5746]

Não são Alces. São Cervos. Alce em inglês é Moose, não Elk. Erro de quem só largou no Google tradutor

[@armandojosegarciaharo3351]

Hay que hacer una reproduccion de cautiverio

[@leifandersen2756]

It is an elk not a moose.Check before you write instead of using auto translation blindly !

[@ahmedq3160]

We’re is the welston

[@Pirike-t8p]

Fantasztikus

[@ricardosadaburgaleta7966]

eso es una auténtica abducción de un ser humano a un alce nos damos cuenta porque nos lo pueden hacer a nosotros tambien y nos sorprende

[@محمدسالم-س8ه3خ]

لو وضعت الصوت العربي سيكون افضل ولكن للأسف 😢😢

[@rodrigorodriguez3635]

estre estudio como otros no hace pensar como afecta a la cadena ecologica de diferentes lugares la introduccion de especies no pertenecientes a la fauna autoctona del lugar y pagaran justos por pecadores..

[@IRISHJINGER]

Au cas où, ce ne sont pas des élans mais des caribous... Les élans sont beaucoup plus grands, ont les bois plats et vivent au Canada... C'est les animaux qu'on voit dans "Frère des ours"...

[@romariodesouza9199]

La narración en español sin duda fue realizada con IA, es mala porque tiene muchos errores y la narrativa falta de tono.

[@MobeenShah-zn9nx]

Good video

[@marialuizasantos7336]

Top Gostei sabe De Yellostone ABÇS Netao

[@mariapiaferrarafrajese8617]

Se leggo le scritte è chiaro che non vedo le immagini!!!

[@WildKingsUnleashed]

Esplêndido vídeo

[@Can17864]

Again man is the real culprit behind the imbalance in nature by introducing invasive lake trout in the yellow stone waters where once cutthroat was a support to grizzlies, ospreys , and bald eagles.

[@danmakintosh7002]

THEY WENT TO CANADA

[@josephdelacapellejr6185]

Élan ou wapiti ???

[@Putnamsmif]

Pretty sure there's still a lot of wolf dogma out there...

[@jameshurst6119]

Gee, wolves eat elk

[@eprst555letnazad]

Это олени, у лосей рога совкообразные, огромные. И гораздо крупнее оленя.

[@mary-bs7ir]

Automatisierte Übersetzung und Untertiteln können falsch sein: der englische "elk" ist nicht ein "Elch", sondern ein Hirsch!

[@dleetr]

Funny how they don't mention the wolves they released into the park that would be busy munching away on the elk.

[@donaldvanvliet9039]

The first part of the doc is about wolves…did you blab your mouth without watching?

[@ritalawson7020]

So the poor old Woolf was vermin. Since when he has to eat too man is the biggest vermin of all

[@misterin2]

Ce ne sont pas des élans mais des wapitis, proches des cerfs. Elk signifie wapiti en américain, et élan en anglais, d'où cette confusion. Les sites traduits automatiquement par IA sont loin d'être au point. Il faut les boycotter.

[@goldeneagle5820]

Wolves? Bears? Bobcats? Wolverines? Or to many of them...

[@reynatorres6076]

En mi opinión el culpable es como siempre el Hombre q se siente poderoso matando un indefenso animalito. Mat tanto lobos como otros animales, el alce entre ellos.

[@jesusdosantossantiso237]

No me parecen alces, más bien wapitis.

[@otteottema6839]

Het gaat hier niet over elanden. Het Amerikaanse woord 'Elk' heeft betrekking op een soort hert nauwverwant aan het Edelhert. De verwarring komt doordat het Engelse woord voor Eland in Europa 'Elk' is. In Amerika heet de Eland 'Moose'.