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The Dinosaurs Episode 4
Transcript
00:15In the depths of space, a threat is looming.
00:22Trapped between the orbits of Jupiter and Mars,
00:28the asteroid is in the depths of space.
00:32One and a half million chunks of ancient rock circling the sun,
00:43drifting endlessly.
00:55But in a single moment of pure chance,
01:04one asteroid is thrown out of its orbit.
01:10A fleeting instant, millions of kilometers from Earth,
01:16sends it on a new trajectory towards the very center of our solar system.
01:34But its journey will come to a sudden and violent end in one of the most catastrophic events in Earth's
01:47history.
01:50And the final chapter in the epic story of the dinosaurs.
01:58It was.
01:59It was.
02:00It was.
02:05It was.
02:06It was.
02:27It was.
02:30It was.
03:23It's three million years since the asteroid started its journey towards Earth.
03:31And the dinosaurs rule the planet.
03:35They dominate the land and are now entering the ocean as well.
03:43The high sea levels have split North America in two, creating endless coastlines.
04:00Hundreds of tropical islands and opportunity.
04:20But these islands are no paradise.
04:26They are home to a formidable predator.
04:34One of the fastest, most agile dinosaurs of its kind.
04:43North America's answer to the Spinosaurus.
05:00Just not in the way you would think.
05:02Not even remotely.
05:09This is Hesperonis.
05:13He is formidable.
05:15And he is fast.
05:19But he's pretty much the opposite of his giant terrifying cousins.
05:35He's awkward and clumsy and has tiny teeth.
05:44Not exactly the traits of a ferocious hunter.
05:49But what he does share with Spinosaurus is that he's not confined to dry land.
06:04In fact, he's the most advanced aquatic dinosaur in history.
06:17Like some sort of prehistoric penguin, he's able to swim far out the sea to access feeding
06:26grounds that were previously out of reach.
06:51This is the bounty of his new blue realm.
07:05Down here, his big clumsy feet become powerful propellers.
07:14And his 94 needle sharp teeth snatch fish with ease.
07:38But as an air breather, he's still tied to the surface.
07:56And the surface is not a safe place to linger.
08:00And the surface is not a safe place to linger.
08:27The apex predators of these seas.
08:33The apex predators of these seas.
08:41The apex predators of these seas.
08:42But he's just stuck in the ocean.
08:42The apex predators of the sea.
08:43Much to the sea.
08:52Changing the sea.
08:58The apex predators of them.
09:00And in the sea.
09:12Which gives the Mosasaur one last shot.
09:36Esperonis is a true survivor.
09:41Venturing further into the ocean than any dinosaur ever has.
09:49But these waters are treacherous.
09:52Even for the best swimmers.
10:03Despite the dinosaur's success in the shadows,
10:06the Mosasaur's rule the waves.
10:19800 miles north, on land, it's a different story.
10:37Furelled by a warm, stable climate, the dinosaur's dominance here is unrivaled.
10:53The great soror ponds are thriving among the tall trees, as they have since the dawn of the Jurassic.
11:08But down below, there has been a revolution.
11:18A female handersaw.
11:25While she may be dwarfed in present company, she's actually larger than an elephant.
11:34And she won't be held up by these giants.
11:39Because nothing can stop a mother on a mission.
11:45And that mission is to feed her family.
11:52Who are somewhere down there.
12:07Long ago, their cheek-stuffing ancestors were scarce and scattered.
12:16But hadrosaurs are now so successful, their herds are thousands strong.
12:25The greatest gatherings of dinosaurs the world has ever known.
12:33But this female's family isn't traveling with the herd.
12:40There in the safety of the creche.
12:44A sprawling nursery for hundreds of young hadrosaurs.
12:51Including her own.
12:58At six months old, they have insatiable appetites.
13:03And will eat almost anything she brings them.
13:11Anything.
13:25Feeding in this bird-like way takes a lot of refills.
13:30So, she's constantly leaving to go find food.
13:36And when mons are away, little ones will play.
14:05With the wingspan of a fighter jet,
14:10pterosaurs are now bigger.
14:15and crèches are the perfect hunting crowns where unguarded nests are the easiest pickings.
14:43Despite the threat from this towering monster, the mothers will defend their babies at all costs, but the giant pterosaur
15:09is determined.
15:11To feed.
15:19The screams from the nest are like a dinner bell to the predator.
15:40But the little ones aren't just crying in fear. They're calling for help.
16:06This fierce instinct to protect their young...
16:11...is central to the hydrosaur's remarkable success.
16:18But other dinosaurs are taking defense to a whole new level.
16:25Because the arms race between predator and prey is escalating.
16:33And this will give rise to the most iconic dinosaurs of all time.
16:45This will take so long...
16:48...that the continent of North America will shift.
16:53The land buckling up into the sky.
17:06The Rocky Mountains.
17:10It's here in the foothills below...
17:14...that the dinosaurs are making an impact.
17:29Pachycephalosaurus.
17:31Using their outrageously thick skulls...
17:37...to do them for supremacy.
17:46And alongside them...
17:49...a dinosaur with even more impressive headgear.
18:00Tyrannosaurus.
18:01Triceratops.
18:02Triceratops.
18:10She may look like a rhinoceros.
18:13But she is twice the size of one.
18:19and armed with spear-like horns over one meter in length.
18:33Triceratops and Pachycephalosaurus have impressive weapons.
18:40Yet, there are some here that are even more armed and dangerous.
18:58Under the cover of darkness, the latest and greatest of the armored warriors.
19:06Six meters long and highly territorial.
19:15Ankylosaurus, Magnibentris.
19:26He's on patrol for intruders.
19:31Bold enough to breach his borders.
19:43His tank-like torso is covered in dozens of thick, bony plates.
19:54And what's more, he has a powerful new weapon.
20:05A club-like tail, weighing half a ton, that he can use to take on whatever stalks these forests.
20:19He senses something.
20:22He senses something.
20:24He senses something.
20:24He senses something.
20:31He senses something.
20:42He senses something.
20:51It's just so difficult to keep using this map.
20:52His borders have been breached.
20:54I'm sorry.
20:55By the worst possible intruder of all.
21:12A tyrannosaurus wrecks.
21:31To the right to the right to the right.
21:54Let's go.
22:42Let's go.
22:50Let's go.
22:53An evolutionary stalemate.
22:56Millions of the years in the making.
23:20But in this arms race,
23:24there's one thing that does set these dinosaurs apart.
23:31Intelligence.
23:32Intelligence.
23:32Let's go.
23:35Let's go.
23:36Let's go.
23:49Let's go.
23:49Let's go.
24:02Let's go.
24:03Let's go.
24:13Let's go.
24:14T-Rex is one of the most fearsome predators of all time.
24:22And to remain at the top of her game, she must eat the equivalent of 200 steaks every day.
24:34And yet, so far, she hasn't eaten a single bite.
24:43That's because she has special plans for this takeout meal.
24:53But ankylosaurus is no light snack.
25:11Let's go.
25:14Let's go.
25:16Let's go.
25:19Let's go.
25:24Let's go.
25:26Let's go.
25:43Let's go.
26:04Finally, her journey's end.
26:17And the reason she's gone through all this effort.
26:35Five hungry hatchlings.
26:50A ferocious killer?
26:53Yes.
26:55But also, a devoted mother.
27:16She will ensure her little ones are well fed to give them the very best start in life.
27:29A ferocious killer.
27:33Something their distant ancestors could only dream of.
27:42Far back in the Triassic.
27:44Far back in the Triassic, tiny Marasuchus hatched into hell.
27:50A Buffalo moon.
27:50These dinosaurs in the making.
27:54Forced to live in the shadows.
27:56Hiding from the ruling reptiles.
28:03But when fate intervened,
28:07they turned catastrophe into opportunity.
28:16And began their monumental rise.
28:22Growing bigger, stronger, and ever more formidable.
28:34In time, they would triumph.
28:38Not just on land, but in the sea and the sky.
28:47After 160 million years,
28:52the dinosaurs are now so dominant,
28:56nothing on Earth can stand in their way.
29:06But something not of this Earth will.
29:12Because as this family's journey is just getting started,
29:18another journey is approaching its end.
29:27The asteroid, now hurtling towards Earth at 50 times the speed of sound,
29:35will finally have its date with destiny.
29:39To me...
29:39To me...
29:42To me...
29:43To me...
29:44Let's go.
29:45Let's go.
30:36Let's go.
30:44Far away in the foothills of the Rockies, these great dinosaurs have no idea what's about
30:54to hit them.
31:16The largest earthquakes in history.
31:29But the worst is yet to come.
31:34An enormous wall of superheated debris explodes outward.
31:57The dinosaurs caught beneath this death cloud are entombed.
32:07Their world is so hot, it literally bursts into flames.
32:21Even the toughest armor is no protection.
32:35The cloud quickly engulfs the entire planet.
32:40Suffocating it with ash, shrouding it in darkness.
32:46It's dangerous.
32:46It's dangerous.
32:53It's dangerous.
32:54Oh, my God.
33:32The few still standing at the end of the day are in a nightmare, choking in the gloom.
34:11My nightfall, the death toll for the dinosaurs,
34:17is catastrophic.
34:47Starved of the sun's rays, an impact winter descends on the Earth.
35:00Global temperatures drop by 25 degrees Celsius, conditions too cold for almost any dinosaur
35:13to withstand.
35:27Giant sauropods laid to rest in the cinders of the very trees that made them so tall.
35:53And their crowded colonies, those who live together, die together.
36:08Protective mothers cannot shield their young from their freezing temperatures.
36:20The punishing cold has also taken its toll on the most famous dinosaur of all.
36:36The tyrant king has fallen.
37:01Even the mighty tyrannosaurus rex will not survive this.
37:35So, what the hell is?
37:39The reign of the dinosaurs has finally come to an end.
38:16But 66 million years later, the dinosaurs are rising again, this time at our hands.
38:41Today, their fossils stand as monuments to a lost world.
38:48But more than that, they are the keys that unlock the secrets of the dinosaur story.
38:59Our understanding of their lives is now greater than ever.
39:04From their very first moments to their very last.
39:14And the revelation that on Earth's darkest day, not all dinosaurs died.
39:24Some were small enough to find shelter from the apocalypse.
39:33And survive even to this day.
39:40The flying dinosaurs we now call the birds.
39:50And the clues to their past are hiding in plain sight.
40:17The remarkable journey that started 235 million years ago continues.
40:27Alongside us.
40:31They are the last remaining link.
40:35To a long lost kingdom.
40:39That was the age of the dinosaurs.
40:46Of course.
40:47Of course.
40:47Of course.
40:55Of course.
40:57Little lost…
41:00On the…
41:14The hijos of the dinosaurs—
41:14The animals die from the clouds.
41:14The animals…
41:14The animals…
41:15
41:18The animals…
41:18The animals…
41:19The animals…
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