Shadowing Practice: Fossils of a Giant Superpredator Found in Antarctica - Learn English Speaking with Video
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Antarctica wasn't always a frozen wasteland.
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A long time ago, it was full of life.
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And 56 million years ago, something terrifying stalked its jungles.
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A giant, flesh-eating bird.
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It was around 6 feet tall and weighed as much as a lion.
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For millions of years, nothing could challenge it.
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So why did it disappear?
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And could there be even bigger predators still hidden beneath the ice?
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Paleontologists found two massive claw bones in Antarctica, sharp, curved and powerful, belonging to this bird.
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They were dug up from the Epresian-aged rocks of Seymour Island, which means they're around 40 to 50 million years old.
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Their shape left no doubt, these were the so-called terror birds.
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Their scientific name is Forrest rascity, some of the most fearsome predators to ever walk the earth.
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They were flightless and didn't even need wings.
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Instead they could sprint at breakneck speeds like ostriches from a nightmare.
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For millions of years these birds ruled South America but now for the first time their presence has been confirmed in Antarctica.
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No surprise here.
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Back then South America and Antarctica were still connected allowing animals to easily commute between continents.
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So these birds probably migrated south to adapt to life on Antarctica's prehistoric landmass.
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It didn't just survive here, it thrived.
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But at some point, this nightmare of an animal vanished.
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Why?
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Most likely because of the temperature changes.
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Antarctica was cooling, slowly turning into the frozen wasteland we know today.
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Its prey may have declined, leaving the predator without enough food.
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Eventually, it disappeared, leaving no descendants behind.
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Researchers hope that they'll find a complete skeleton eventually.
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They're also wondering where there might be even bigger species waiting to be discovered.
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Perhaps these birds evolved into a completely new Antarctic lineage.
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For now, all we have are two giant creepy claws.
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People often think that there are almost no animals or plants in Antarctica, but that's not true at all.
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Penguins waddle around and forget the cute tiny ones.
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Antarctica used to have six-foot-tall monsters.
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The emperor penguins are the largest penguin species alive today.
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They can dive over 1,800 feet deep and hold their breath for over 20 minutes.
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There were giant ancient penguins around 38 million years ago.
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They were the size of humans.
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fossils show they had long sharp beaks making them terrifying hunters of fish
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and squid the fish there are also absolutely fascinating forget giant
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squids colossal squids are nightmares even bigger some reach over 40 feet long with massive super sharp beaks
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and eyes the size of dinner plates.
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Finally, orcas, the apex predators of the Antarctic Ocean.
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They hunted packs, working together like a wolf pack of the sea to take down seals, fish, and even massive whales.
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There are even tiny plants like moss and algae, Antarctic hair grass and pearl wars.
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They somehow survive against all odds.
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There are many other myths going on about Antarctica.
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For example, some people think that when icebergs break off from glaciers, they immediately start drifting straight into the open ocean until they melt.
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But the reality is way more chaotic.
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First, when an iceberg breaks off from a glacier or ice shell, it has to deal with underwater obstacles.
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It can stay stuck on the seafloor for decades without moving.
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Then they get caught in powerful whirlpools and spin in place for months.
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One iceberg, a 23A, spent nearly 40 years frozen in place before finally breaking free,
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only to get caught in a swirling ocean vortex for another eight months.
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After that, their paths are influenced by ocean currents, tides, winds, and even underwater topography.
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They don't just float freely, their movements are full of literal unexpected twists.
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And speaking of glaciers, another strange rumor is
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that some humans can't travel more than 311 miles inland in Antarctica because of an impassable ice wall,
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freezing jet fuel, deadly winds, and no oxygen.
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But this is completely false.
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Antarctica has been explored by planes, vehicles, and even scientists on foot.
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There's an entire research station sitting at the South Pole.
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People live there all year long.
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The ice wall is real, a massive ice cliff rising above the ocean, but that isn't some secret barrier, it's an ice shell.
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These are thick slabs of ice that form when glaciers slowly flow off the land and spread over the ocean.
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Almost three-fourths of Antarctica's coastline is made up of them, but they don't form some giant ring around the world.
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Antarctica is one of the most extreme places on Earth, but we've conquered its challenges, and we keep learning more about it every year.
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That's why every year, millions of dollars are poured into keeping research stations running,
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protecting wildlife, and making sure the people who live there have everything they need.
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But where does all this money go?
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Well, Antarctica stations are basically small cities.
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There's electricity, heating, water purification, food storage, and medical facilities.
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The biggest station, McMurdo, is basically a town with over 1,000 people in summer.
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It has everything from a fire station to a gym.
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The South Pole Station is super deep inlet, so it's one of the hardest places to supply.
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Getting food and fuel there requires airplanes flying thousands of miles in extreme cold.
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But the internet loves a good mystery.
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When Google Maps revealed what looked like a massive doorway in Antarctica, conspiracy theorists went wild.
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People joked about everything from Bigfoot's vacation home to a secret base, or even a Star Trek spaceship hangar hidden in the ice.
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But there's a way simpler and less exciting explanation.
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It's actually a grounded iceberg, a chunk of ice that got stuck in shallow water and is now slowly melting.
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As ice moves across the landscape, it flows around bumps and obstacles, creating odd shapes.
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The process of melting, breaking apart, and refreezing can carve ice into unexpected forms.
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Antarctica also has incredibly strong downward-blowing winds that sculpt ice into dramatic formations over time.
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No secret doorway, unfortunately.
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And speaking of doors, for years, Ushuaia, Argentina, has been called the gateway to Antarctica, the last stop before the icy continent.
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The place where expeditions begin. But there's another option.
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Punta Arenas, Chile.
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Let's compare them.
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Ushuaia is closer to Antarctica.
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It's the top departure point for tourists going on cruises.
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But no regular flights to Antarctica.
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No major scientific bases operating from here.
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It's basically controlled by the military, which refuses to allow private flights, only commercially operated ships.
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Yes, Punta Arenas is further from Antarctica, but 22 countries and global organizations use it as their main base.
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There are regular flights to Antarctica happening there every year.
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Private airlines can actually operate here, making it the real air connection to Antarctica.
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Ushuaia may have the best location physically, but Punta Arenas actually runs the show.
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Argentina made a huge error in picking its Antarctic airbase.
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Instead of setting up a simple, accessible base at sea level, they built Marambio Base, very high,
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on rough terrain, completely impossible to reach by land.
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Everything has to be flown in by helicopter,
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making operations slow expensive and frustrating for 50 years argentina stubbornly stuck to this bad decision
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while chile set up efficient well-planned bases that the world now uses
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if things don't change uxuaia will be nothing more than a tourist stop but what's terrifying is
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that antarctica seems to be returning to its past it's supposed to be the coldest place on earth
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but something shocking happened just recently for the first time in recorded history, temperatures in Antarctica broke 68 degrees Fahrenheit.
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This continent is buried under miles of ice.
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Usually, temperatures there can drop to minus 112 degrees.
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But in the winter of 2020, scientists recorded an insane 69 degrees on Seymour Island, hotter than many places in Europe at that time.
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Scientists believe there are several reasons for that.
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First, there are changes in the way heat moves around the planet's waters.
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Second, melting permafrost due to the planet warming.
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It looks like the climate is changing faster than expected.
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Vocabulario y notas de pronunciación para esta lección
Esta lección de conversación de nivel B2 se basa en el vídeo “Fossils of a Giant Superpredator Found in Antarctica”. Las palabras que más se repiten: antarctica, ice, bird, ocean, station. Este vídeo tiene 112 frases y 1339 palabras para practicar shadowing. La parte hablada dura 9:53. El hablante mantiene un ritmo constante de unas 135 palabras por minuto, cómodo para el shadowing. Solo el 77 % de las palabras está entre las 3.000 más comunes del inglés, por lo que el vocabulario es exigente.
Vocabulario clave de este vídeo
Las 15 palabras más avanzadas del vídeo, con su pronunciación y significado:
| Palabra | Pronunciación | Significado |
|---|---|---|
| iceberg sustantivo | /ˈaɪsbɝɡ/ | banquisa, iceberg |
| glacier sustantivo | /ˈɡleɪ.ʃɚ/ | glaciar, helero |
| predator sustantivo | /ˈpɹɛd.ə.tɚ/ | predador, depredador |
| penguin sustantivo | /ˈpɛŋ.ɡwɪn/ | pingüino |
| melt verbo | /mɛlt/ | derretirse, fundirse |
| freeze verbo | /ˈfɹiːz/ | helarse, congelarse |
| terrify verbo | /ˈtɛɹɪfaɪ/ | aterrar |
| continent sustantivo | /ˈkɑntɪnənt/ | continente |
| nightmare sustantivo | /ˈnaɪt.mɛɚ/ | pesadilla, mal sueño |
| beak sustantivo | /biːk/ | pico |
| wasteland sustantivo | /ˈweɪs(t)ˌlænd/ | desierto, yermo |
| claw sustantivo | /klɔ/ | garra |
| obstacle sustantivo | /ˈɑbstəkəl/ | obstáculo, óbice |
| underwater adjetivo | /ʌndɚˈwɔtəɹ/ | sumergido, subacuático |
| disappear verbo | /dɪsəˈpɪɹ/ | desaparecer, desparecer |
Phrasal verbs que vas a escuchar
| Palabra | Significado |
|---|---|
| move around verbo | movilizarse |
| take down verbo | descolgar |
Gramática en este vídeo
Las estructuras que más usa el hablante, con las palabras exactas del vídeo:
| Estructura | En el vídeo |
|---|---|
| Voz pasiva be + participio pasado — importa lo que ocurre, no quién lo hace | were dug · has been confirmed · were still connected |
| Present perfect have/has + participio pasado — una acción pasada que sigue importando ahora | has been confirmed · has been explored · we've conquered |
| Oraciones de relativo who / which + oración — información extra sobre una persona o cosa | Island, which means · people who live |
Pronunciación a tener en cuenta
El hablante usa 12 contracciones y formas reducidas, como don't, didn't, they're. Dilas en su forma corta, tal como las oyes.
- Los sonidos de “th”: theorist /ˈθiːəɹəst/, thrive /θɹajv/, myth /mɪθ/
- Los sonidos de “sh” y “zh”: glacier /ˈɡleɪ.ʃɚ/, purification /ˌpjʊəɹɪfɪˈkeɪʃən/, vanish /ˈvænɪʃ/, expedition /ɛkspəˈdɪʃən/, shallow /ˈʃæloʊ/
- Palabras largas — cuida el acento: underwater /ʌndɚˈwɔtəɹ/, impassable /ɪmˈpɑː.sə.bəl/, prehistoric /ˌpɹiː.hɪsˈtoɹ.ɪk/, purification /ˌpjʊəɹɪfɪˈkeɪʃən/, topography /təˈpɑɡɹəfi/
Sonidos difíciles para hispanohablantes:
- s + consonante al inicio — sin añadir una “e” delante: sculpt /skʌlpt/, skeleton /ˈskɛlətən/, sprint /spɹɪnt/
- /v/ — no es /b/: los dientes tocan el labio inferior: vanish /ˈvænɪʃ/, vortex /ˈvɔɹtɛks/, thrive /θɹajv/, evolve /ɪˈvɑlv/, dive /daɪv/
- /dʒ/ — no es la “y” ni la “ch”: lineage /ˈlɪn.i.ɪd͡ʒ/, jungle /ˈd͡ʒʌŋ.ɡ(ə)l/
Cómo practicar con este vídeo
- Escucha el vídeo entero una vez sin hablar y anota las palabras que no conoces.
- Haz shadowing frase por frase a velocidad normal, repitiendo cada una hasta que tu ritmo coincida con el del hablante.
- Grábate y compara con el original, prestando atención a palabras como iceberg, glacier, predator.
¿Qué es la Técnica de Shadowing?
Shadowing es una técnica de aprendizaje de idiomas respaldada por la ciencia, desarrollada originalmente para la formación de intérpretes profesionales y popularizada por el políglota Dr. Alexander Arguelles. El método es simple pero poderoso: escuchas audio en inglés nativo y lo repites en voz alta de inmediato, como una sombra que sigue al hablante con solo 1-2 segundos de retraso. A diferencia de la escucha pasiva o los ejercicios de gramática, el shadowing obliga a tu cerebro y músculos de la boca a procesar y reproducir simultáneamente patrones de habla reales. Las investigaciones muestran que mejora significativamente la precisión de la pronunciación, la entonación, el ritmo, el habla conectada, la comprensión auditiva y la fluidez al hablar, convirtiéndola en una de las metodologías más efectivas para la preparación del IELTS Speaking y la comunicación en inglés en el mundo real.