ฝึกพูดภาษาอังกฤษด้วยเทคนิค Shadowing จากวิดีโอ: Why The Entire Ocean Is Terrified of Sperm Whales
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172 ประโยค
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These are sperm whales, the largest predators on the entire planet.
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They float like giant stone boulders, as if they were prepared for a ritual in the middle of the open ocean.
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But right now, they're just sleeping.
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Now, to be clear, these aren't the biggest whales in the ocean.
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That title belongs to the blue whale.
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But there is a massive difference between being the largest and being the most feared.
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Even killer whales, very ironic to their name, will not try to hunt an adult sperm whale.
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They're simply too outclassed, not just by size, but by intelligence, by strategy, by abilities no other predator on the earth possesses.
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They're able to survive in every ocean in the world, and also in depths where no animal that needs to surface is ever supposed to be in.
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Every legendary tale of men at sea battling giant whales all derived from this very one creature, the sperm whale.
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When the whale begins its hunt by casting echolocation throughout the ocean, every other creature nearby will go completely radio silent.
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No one wants to be found.
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What makes these whales so terrifying that even other apex predators in the ocean will stay away?
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How does a mammal that still has to breathe there manage to survive diving to the deepest parts of the ocean?
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And why does it seem like no matter how deep or how dark you hide, a sperm whale will always be able to find and kill you.
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To understand how these animals seem to be freakishly dominating the ocean, you first have to understand the scale of what we're dealing with.
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A male sperm whale can reach 60 feet in length and weigh over 50 tons.
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So basically, imagine a parking lot full of 30 cars and then you put them all on this edge of the scale.
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The sperm whale still weighs more than that.
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But their most significant stat isn't their body weight, it's their brain weight.
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They possess the single largest brain of any animal to ever exist in the history of the world.
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Which means, yes, this is like the fourth world record that I've mentioned sperm whales breaking.
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It's about five times larger than a human brain.
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And while we still don't fully understand what they're doing with all their extra processing power, it's clear they aren't just drifting aimlessly.
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There is a common misconception that whales are just slow, gentle giants that wander the ocean like peaceful floating clouds.
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And well, this is actually true for things like blue whales or humpback whales.
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But sperm whales aren't passive.
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They're active, tactical predators.
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They can reach speeds of nearly 20 miles an hour when they need to, which, for an animal that weighs as much as 10 elephants combined, is a terrifying amount of momentum.
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And while they are famous for their battles with giant squids, they aren't just squid eaters.
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They are opportunistic.
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They have been known to take down sharks and large deep sea fish, essentially eating whatever is large enough to be worth the effort.
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They are also one of the most successful travelers on the planet.
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They don't have a home in the traditional sense, because they occupy every ocean on Earth where the water is deep enough to hide their bodies.
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From the frozen Antarctic to the tropical currents of the equator, the sperm whale is the one constant apex predator that you'll see everywhere.
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This makes them built for any environment, including the bottom of the ocean.
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Most marine mammals are restricted to the top few hundred feet of the ocean where the light reaches.
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The sperm whale, however, routinely dives over 3,000 feet and has been recorded going as deep as 10,000 feet.
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At that depth, the water pressure is over 3,000 pounds per square inch, which essentially for anything else, means you're dead.
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Even blue whales, which are almost three times as heavy as sperm whales, have maximum recorded dives only reaching 1,600 feet.
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Any further, and they'd suffer the same fate as any other creature, instant death.
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This makes them one of the only animals in the entire world
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that can survive both at the surface and the absolute depths.
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You see, in nature, there is almost always a trade-off.
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You can either be a creature of the sun or a creature of the void.
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You don't get to be in both.
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If you live at the surface, you need lungs, which are basically big, fragile balloons of air.
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But if you go to the deep, those balloons collapse.
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Creatures that live in the deep sea are pressurized from the inside out to match the weight of the ocean around them.
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To them, the normal pressure we live in is actually a vacuum.
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If a deep sea fish tries to come to the surface, they literally expand from the inside out.
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Without the massive weight of the ocean holding their bodies together, their tissues begin to swell.
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Their organs can fail, and in extreme cases, they basically just fall apart.
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It's why the blobfish looks like a miserable pile of melting goo when it's on land.
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It's not supposed to be there.
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So how does the sperm whale do it?
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And why bother going to places where no other whale would ever want to go?
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Well, to survive down there, the sperm whale essentially has to cheat at physics.
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See, while every other air breather is limited by their fragile lungs, the sperm whale's ribcage is actually flexible.
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It's designed to collapse, instead of fighting the pressure.
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They just let their lungs fold up flat to keep them from rupturing.
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It sounds like a horrific injury, but for them, it's just Tuesday.
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But they still need to breathe, right?
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Well, not exactly.
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Unlike us, they don't carry much of their oxygen in their lungs.
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Down there, that's just a liability.
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Instead, they store it directly in their blood and muscles.
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They have massive amounts of a protein called myoglobin, which holds onto oxygen with a death grip.
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This allows them to effectively shut down their respiratory system and go into a low-power mode for over 90 minutes.
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But even if you survive the pressure and the lack of air, you've now entered the pitch-black void with no idea what is surrounding you and what might want to eat you.
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Fortunately for sperm whales, they're so big that, well, nothing really wants to eat them.
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Or nothing can eat them.
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So they can't be eaten, they don't need much air, and they can survive the pressure.
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Cool, but why go down there still?
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Well, the deep ocean holds a massive, untapped caloric jackpot.
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Cephalopods.
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Down in the abyss, there is a literal group of food that no other predator can touch.
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Specifically, the giant and colossal squids.
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For any other animal, a 40-foot squid with rotating hooks on its tentacles is a nightmare.
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There is no deep-sea predator that can compete with them.
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But sperm whales aren't from the deep sea.
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By evolving the ability to dive three times deeper than a blue whale, the sperm whale essentially secured a monopoly on the biggest food source in the ocean.
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It's a genius move, if you can survive the trip.
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But even if you're big enough to ignore the predators and tough enough to ignore the pressure, you're still basically flying a 50 ton plane in the middle of nowhere.
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In the pitch black of the abyss, eyes aren't doing anything for that whale.
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So, the sperm whale stopped relying on them.
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Instead, it decided to turn its entire face into the most powerful sonar system on the planet.
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This is the spermacity organ.
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It's a massive structure filled with thousands of gallons of specialized oil, taking up nearly a third of the whale's entire body.
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Its job is simple, to create, focus, and aim sound.
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When a sperm whale is hunting, it produces a series of clicks, but calling them clicks is like calling a jet engine a whistle.
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These sounds can reach 230 decibels.
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For context, a jet engine taking off is about 150 decibels.
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180 decibels is enough to burst human eardrums.
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230 decibels is loud enough to literally vibrate a human body to death.
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It is the loudest sound produced by any living creature in the history of the universe.
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Even louder than a baby on the plane ride back home.
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When the whale sends these sound pulses out, they don't just hit things.
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They travel through the water like an acoustic searchlight.
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The sound waves bounce off the squid's body and return to the whale, giving it a 3D, high-definition map of exactly where the prey is,
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how fast it's moving, and even how big it is.
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A squid can be perfectly camouflaged and motionless in the dark, invisible to any eye, but to the sperm whale's sonar, it might as well be standing under a neon sign.
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There is nowhere to hide.
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If a sperm whale enters your part of the ocean, it already knows exactly where you are.
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But this isn't just about finding food.
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This sound is so powerful that it's theorized the whale can use it as a weapon.
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By narrowing the beam of sound, they might be able to literally flashbang their prey with an acoustic energy,
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stunning or even paralyzing a squid before they even reach it.
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They are essentially hunting with a biological railgun, using sound waves in water as bullets.
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But even when you're hunting with a biological railgun, the target doesn't always go down quietly.
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Sperm whales are tanky, definitely, but their prey isn't completely helpless either.
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These giant and colossal squids are genuinely deadly.
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For most animals, a 40-foot invertebrate with rotating hooks and serrated suction cups is the stuff of nightmares.
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We know these battles happen not because we've seen them, since they take place in a pitch black void miles below the surface, but because the whales carry the physical receipts.
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Nearly every adult sperm whale is covered in a map of horrific scars.
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They have giant circular welts on their heads and bodies, carved out by the sawtooth suckers of a giant squid.
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Some whales even have deep gashes from the pivoting bone hooks of the colossal squid.
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This is the most aggressive meal any whale is eating.
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Fortunately for the sperm whale, it's so massive and its skin is so thick
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that it can effectively ignore the fact a monster is trying to rip its face off, even though it's probably a bit painful.
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Realistically, the squids likely win less than 1% of the time against the whale.
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They'd have to hope the whale was a juvenile or that they're a really beefy squid.
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Inside the stomachs of sperm whales, scientists have found thousands of hard, indigestible squid beaks.
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Since the soft tissue of the squid dissolves quickly, these beaks pile up like a biological graveyard.
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Some individual whales have been found with over 18,000 beaks in their their gut all at once.
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Basically, it's quite unlikely the squids are actually going to win the battle, even though those marks do look brutal.
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It's a gruesome reality.
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The Krakens that have terrified sailors for centuries, the massive, hooked tentacled horrors of the deep, aren't actually the kings of the abyss.
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They are a prey species.
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They are being harvested by the thousands by a mammal that decided, millions of years ago, That the dark wasn't something to be afraid of.
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But the real terror isn't just their size It's the fact they're actually thinking.
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While the deep dives are solo missions, their social life is built on tactical superiority.
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This is the real reason orcas usually keep their distance even against juveniles.
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If a pod is threatened the adults form a The Marguerite Formation.
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They arrange themselves in a giant circle with their heads pointed inwards and their massive tails pointed out.
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The calves are tucked safely in the center, protected by a wall of 40 tonne units.
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Even the wolves of the sea aren't dumb enough to challenge this.
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One tail flick can kill them.
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They have no rivals.
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They have no peers.
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They've turned the most hostile environment on the planet into a private, guarded pantry.
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Animals have been evolutionarily scarred by this one creature.
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For nearly 20 million years, the sperm whale has been the primary protagonist of the deep sea.
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When a predator dominates a world for that long, the rest of the ecosystem starts to bend around them.
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It's a concept called evolutionary memory, where the fear of a specific predator becomes baked into the DNA of everything else.
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This is why so many species, especially in the deep, have developed such specific, almost paranoid ways of living.
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If you're a squid, your entire existence is basically a desperate attempt to stay off a sonar screen.
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The hooks, the ink, the camouflage, it's all a part of a 20 million year old arms race that the squids are still, very clearly, losing.
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Even migration patterns across the globe are influenced by the shadow of the whale.
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Many species will actively avoid specific deep water trenches or underwater canyons, not because the water is too cold,
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but because that's where the whales have been hunting since before humans could even walk upright.
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It is a learned trauma that has been passed down through countless generations of prey.
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The ocean doesn't just fear the sperm whale because it's big or because it's loud.
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It fears them because for the last 20 million years, the whale has been the only thing in the dark that doesn't have to hide.
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Even other highly intelligent predators, like beaked whales, live in a state of acoustic paranoia.
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They've been observed performing extreme silent dives, specifically avoiding the frequency ranges where the sperm whales hunt.
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They are essentially playing a high-stakes game of don't breathe, where the seeker is a 50 ton biological biological radar.
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Even orcas, when they hear the distinct rhythmic clicking of a bald sperm whale, have been known to go completely radio silent.
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They stop their own vocalizations to avoid being detected.
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Across the board, the presence of a sperm whale creates what scientists call an acoustic shadow.
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When those clicks start, the rest of the ocean gets very, very quiet.
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It is a silence born out of respect, or more accurately, survival.
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Because in the deep, everything is a trade-off.
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To be fast, you usually have to be small.
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To be big, you usually have to be slow.
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But the sperm whale is massive, it's fast, and it's smarter than almost everything else in the water.
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So when you see them floating vertically in the moonlight, looking like nothing more than a massive, unmoving stone, remember, they aren't always this peaceful.
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And the entire ocean remembers that too.
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Fortunately for us, we live on land, where the way of a whale could hurt us if it fell from the sky, which is pretty unlikely.
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But for everything else beneath the waves, the nightmare is very real, very loud, and very hungry.
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Thank you for watching.
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If you enjoyed this video, check out this one about why snails in the ocean become so much more scary than normal ones.
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คำศัพท์และข้อสังเกตด้านการพูดสำหรับบทเรียนนี้
บทเรียนฝึกพูดระดับ B2 นี้ใช้วิดีโอ “Why The Entire Ocean Is Terrified of Sperm Whales” เป็นสื่อ คำที่ถูกพูดซ้ำบ่อยที่สุด: whale, sperm, ocean, deep, squid วิดีโอนี้มี 172 ประโยค และ 2540 คำ สำหรับฝึกพูดตาม ช่วงที่มีเสียงพูดยาว 13:59 ผู้พูดพูดเร็ว ประมาณ 182 คำต่อนาที จึงมีการเชื่อมเสียงและลดเสียงค่อนข้างมาก มีเพียง 76% ของคำที่อยู่ใน 3,000 คำที่ใช้บ่อยที่สุดในภาษาอังกฤษ คำศัพท์จึงค่อนข้างยาก
คำศัพท์สำคัญในวิดีโอนี้
คำที่ยากที่สุด 15 คำในวิดีโอ พร้อมคำอ่านและความหมาย:
| คำศัพท์ | คำอ่าน | ความหมาย |
|---|---|---|
| whale คำนาม | /ˈweɪl/ | วาฬ, ปลาวาฬ |
| predator คำนาม | /ˈpɹɛd.ə.tɚ/ | นักล่า, ผู้ล่า |
| dive คำกริยา | /daɪv/ | ดำ |
| lung คำนาม | /ˈlʌŋ/ | ปอด |
| beak คำนาม | /biːk/ | จะงอย |
| mammal คำนาม | /ˈmæməl/ | สัตว์เลี้ยงลูกด้วยน้ำนม, สัตว์กินนม |
| sonar คำนาม | /ˈsoʊ.nɑːɹ/ | โซนาร์ |
| weigh คำกริยา | /weɪ/ | ชั่ง |
| nightmare คำนาม | /ˈnaɪt.mɛɚ/ | ฝันร้าย |
| orca คำนาม | /ˈoɹkə/ | วาฬเพชฌฆาต |
| rotate คำกริยา | /ˈɹoʊ.teɪt/ | หมุน, หัน |
| fragile คำคุณศัพท์ | /ˈfɹæd͡ʒəl/ | บอบบาง |
| balloon คำนาม | /bəˈlun/ | ลูกโป่ง |
| organ คำนาม | /ˈɔːɡən/ | อวัยวะ, องค์ |
| collapse คำกริยา | /kəˈlæps/ | พัง, ถล่ม |
กริยาวลีที่คุณจะได้ยิน
| คำศัพท์ | ความหมาย |
|---|---|
| take off คำกริยา | ถอด |
ไวยากรณ์ในวิดีโอนี้
โครงสร้างที่ผู้พูดใช้บ่อยที่สุด พร้อมคำพูดจริงจากวิดีโอ:
| โครงสร้าง | ในวิดีโอ |
|---|---|
| Present perfect have/has + กริยาช่อง 3 — เหตุการณ์ในอดีตที่ยังเกี่ยวข้องกับปัจจุบัน | I've mentioned · have been known · has been recorded |
| Passive voice be + กริยาช่อง 3 — เน้นสิ่งที่เกิดขึ้น ไม่ใช่ผู้กระทำ | be found · have been known · are restricted |
| Relative clauses who / which + อนุประโยค — ข้อมูลเพิ่มเติมเกี่ยวกับคนหรือสิ่งของ | whales, which are · lungs, which are · sky, which is |
การออกเสียงที่ควรระวัง
ผู้พูดใช้รูปย่อและรูปลดเสียง 47 ครั้ง เช่น aren't, they're, don't ให้พูดแบบสั้นตามที่ได้ยิน
- เสียง “sh” และ “zh”: specialize /ˈspɛʃəˌlaɪz/, evolutionary /ˌiː.vəˈluː.ʃən.ɛɹ.i/, migration /maɪˈɡɹeɪʃ(ə)n/
- คำยาว — ลงเสียงหนักให้ถูกพยางค์: fortunately /ˈfɔɹ.t͡ʃə.nɪt.li/, ecosystem /ˈikoʊˌsɪstəm/, respiratory /ɹɪˈspɪ.ɹət.ə.ɹi/, evolutionary /ˌiː.vəˈluː.ʃən.ɛɹ.i/, monopoly /məˈnɑpəli/
เสียงที่คนไทยมักออกเสียงยาก:
- เสียงท้ายคำ — ออกเสียงให้ครบ ไม่เปลี่ยนเป็นตัวสะกดแบบไทย: whale /ˈweɪl/, dive /daɪv/, decibel /ˈdɛsɪbɛl/, abyss /əˈbɪs/, colossal /kəˈlɑsəl/
- /v/ — ไม่ใช่ /w/ ให้ฟันบนแตะริมฝีปากล่าง: dive /daɪv/, void /vɔɪd/, derive /dɪˈɹaɪv/, evolve /ɪˈvɑlv/, evolutionary /ˌiː.vəˈluː.ʃən.ɛɹ.i/
- /z/ — เสียงก้อง ไม่ใช่ /s/: specialize /ˈspɛʃəˌlaɪz/, possess /pəˈzɛs/, observe /əbˈzɜːv/, miserable /ˈmɪz(ə)ɹəbəl/, invisible /ɪnˈvɪzəb(ə)l/
วิธีฝึกกับวิดีโอนี้
- ฟังวิดีโอให้จบหนึ่งรอบโดยยังไม่ต้องพูด แล้วจดคำที่ยังไม่รู้จัก
- เริ่มที่ความเร็ว 0.75× พูดตามทีละประโยค แล้วกลับไปใช้ความเร็วปกติเมื่อเริ่มคล่อง
- อัดเสียงตัวเองแล้วเทียบกับต้นฉบับ โดยสังเกตคำอย่าง whale, predator, dive เป็นพิเศษ
เทคนิค Shadowing คืออะไร?
Shadowing เป็นเทคนิคการเรียนรู้ภาษาที่ได้รับการรับรองทางวิทยาศาสตร์ พัฒนาขึ้นสำหรับการฝึกนักแปลมืออาชีพ วิธีการนี้เรียบง่ายแต่ทรงพลัง: คุณฟังเสียงภาษาอังกฤษจากเจ้าของภาษาและพูดตามทันที — เหมือนเงาที่ตามผู้พูดด้วยช่วงเวลาห่าง 1-2 วินาที การวิจัยแสดงว่าเทคนิคนี้ปรับปรุงความแม่นยำในการออกเสียง ทำนองเสียง จังหวะ การเชื่อมเสียง การฟังเข้าใจ และความคล่องแคล่วในการพูดได้อย่างมีนัยสำคัญ