00:17Two hundred and one million years ago, the dinosaur's world is collapsing beneath them.
00:35The continent of Pangaea is tearing apart, creating a great divide and a molten apocalypse for any creature caught in
00:56this hell.
01:13For both reptiles and dinosaurs, escape is impossible.
01:31But the worst is yet to come.
01:38An invisible killer is choking the air itself.
01:49Clouds of toxic gases wreak devastation.
02:08Acidic fog poisons everything in its path.
02:35As the gases in the atmosphere grow thicker, temperatures soar.
02:43Annihilating three quarters of all plant species and millions of animals across the planet.
03:10It's known as the End Triassic Mass Extinction.
03:16And it will change everything for the dinosaurs.
03:25Because their versatility and ability to adapt helped them survive this catastrophe far better than the reptiles.
04:05And it will change everything for the animals.
04:06The reign of the ancient reptiles is over.
04:19The End Triassic Mass Extinction
04:19The End Triassic Mass Extinction
04:34The End Triassic Mass Extinction
04:48With their rivals out of the way.
04:53The dinosaurs now have a chance to rise from the ruins.
05:01The End Triassic Mass Extinction
05:03And conquer the world.
05:10The End Triassic Mass Extinction
05:11The End Triassic Mass Extinction
05:23The End Triassic Mass Extinction
05:39The End Triassic Mass Extinction
05:41The End Triassic Mass Extinction
05:55The End Triassic Mass Extinction
06:23Two million years later, the dawn of the most famous era in Earth's history.
06:34The Jurassic.
06:43Pangaea has split into two new landmasses.
06:52In the southern continent of Gondwana, life is thriving again.
07:03Pterosaurs have survived the destruction.
07:09The sky is allowing them to seek refuge away from the chaos.
07:25There are now endless forests here.
07:30There are dinosaurs.
07:42Dinosaurs like Massospondylus.
07:52He's barely the height of a human, so it's hard to reach the freshest food high in the trees.
08:11But he's got a bigger problem.
08:15A newly evolved rival.
08:29Volcanodon.
08:37At 11 meters long, she's more than twice the size of Massospondylus.
08:47She's part of a new branch of plant-eating dinosaurs known as the sauropods.
09:01Famous for their long necks and huge bodies that are supported by four legs instead of just two.
09:17These profound changes will help these giants become the largest animals to ever walk the Earth.
09:30If Massospondylus can't compete, it will be left behind.
09:44While the sauropods are on the rise, another legend in the making is waiting in the wings.
10:05Caves like these are crawling with strange creatures.
10:13And one of them will give rise to some of the greatest dinosaurs in history.
10:40The tiny Heterodontosaurus.
10:59What makes him exceptional is hard to spot at first.
11:11One thing is clear, however, he's not one to back down from a challenge.
11:29Especially when there's food at stake.
11:38It's all about the food.
11:53He may only weigh as much as a chihuahua.
11:58But he does have a superpower.
12:02An incredibly strong beak and jaw that allow him to devour almost anything.
12:16And that's not all.
12:19He also has cheek pouches where he can store food to eat later in safety.
12:52He also has a great demand for theャンデ서를 to sleep.
12:55this multi-tooled mouth will allow his descendants to become some of the greatest dinosaurs of all time
13:08descendants like the mighty stegosaurus and even triceratops
13:16from small beginnings great things can grow
13:35but the dinosaurs will need more than cheap pouches to conquer the planet
13:44on the northern side of the great divide lies the other new continent laurasia
14:00so
14:21Hiding in these waters are the remnants of a once great empire.
14:39The reptiles.
14:50They are a deadly threat in these murky shallows.
14:56But they also need to be wary.
15:05Because they no longer rule the Jurassic Swans.
15:17They have been usurped by those they once hunted on Pangea's shores.
15:30Dinosaurs.
15:37Dilophosaurus.
15:42With over 60 serrated teeth, she's twice the length of a polar bear.
15:59And a laser focused hunter.
16:18But in these flooded forests, there are creatures even more frightening than her.
16:30And a laser focused hunter.
17:10Like a moth to a flame, she follows the mysterious cause.
17:51A male Dilophosaurus.
17:59Larger and deadlier than her.
18:14He's drawn her here for a reason.
18:25But it's not bloodlust.
18:28It's just plain lust.
18:34A coating ritual.
18:40Clawing at the ground is a display of strength.
18:46And to show off his virility, behold his crimson head crest.
19:07Finally, the grand finale.
19:13The song of the Swamp King.
19:35For a ferocious predator, he's remarkably gifted.
19:47But the future of her bloodline depends on her choice.
19:52And he's just not gifted enough.
20:06Ensuring the continuation of their species is critical.
20:12But far below, the Earth itself poses a threat to their very existence.
20:36This time, from the Jurassic Seas.
20:52An alien world.
20:57Full of bizarre creatures.
21:13The most dangerous of them all.
21:18The pliosaurs.
21:24The great sea monsters that rule the oceans.
21:28The humans.
21:31They are one reason that dinosaurs have not entered this frontier.
21:40But the real threat to the dinosaurs.
21:44Lies below.
21:53Methane.
22:05This greenhouse gas.
22:07Was frozen under the sea bed.
22:10For millions of years.
22:14But warming oceans.
22:16Are causing it to leach out.
22:19With a devastating sound effect.
22:21For the entire globe.
22:24For the entire globe.
22:33Extreme heat.
22:39The endless forests that Masospondilus once roamed.
22:44Are now a parched wasteland.
22:57The plants he relied on for food.
23:01Are nearly all gone.
23:09Many of his kind have died from starvation.
23:14And the rising temperatures.
23:17Have turned his home.
23:19Into a tender box.
23:37And now.
23:41To save the world.
23:48The sea moon will be shaken.
23:48The sea moon will be shaken.
23:49On the sea moon will be shaken.
24:15It's the final nail in the coffin
24:18for Massospondylus.
24:27Their 17 million year existence
24:31brought to a tragic end.
24:58Eventually, other dinosaurs will rise to take their place.
25:09In that time, Earth's two continents will drift even further apart, creating a fragmented
25:20world with new lands for the dinosaurs to conquer.
25:46It's more than 20 million years since the fall of Massospondylus, and here in the mountains
25:55of what will one day be China, the climate has cooled, life is flourishing, and a revolution
26:15is taking place.
26:34Within these cold dawn forests, something is stirring.
27:01The great four-legged dinosaurs.
27:16Mamentisaurus.
27:17Mamentisaurus.
27:18A giant of the Jurassic.
27:41Nearly 40 million years after their ancestor Thorcanodon made its monumental rise.
27:50Mamentisaurus.
27:51Mamentisaurus is now so gigantic that just standing up is a mammoth task.
27:58a massive
28:44They have the longest necks of any animal in history that can reach as high as a five-story building.
28:59And they're not the only giants that live in this forest.
29:05The trees are reaching ever greater heights as well, to avoid being completely consumed
29:11by these towering beasts.
29:19But there is a catch to being this tall.
29:25A 15-meter-long neck can only support a tiny head that houses a brain smaller than an apple.
30:00The evolutionary focus on size over smarts will help the sauropods become the most dominant herbivores of the Jurassic Park.
30:24But they're not the only ones in this forest who are moving up in the world.
30:40Ankyornis.
30:41Ankyornis.
30:44Yes, he looks a bit like a chicken.
30:48And he is about the size of one.
30:51But he's nevertheless a dinosaur.
31:00A dinosaur with feathers.
31:02And newly evolved wings.
31:28Cyanraptor.
31:34Another dinosaur.
31:38But one willing to hunt its own tiny cousin.
32:00His primitive wings are next to useless on the ground.
32:24But that doesn't mean he's confined to the ground.
32:57The ground is next to the ground.
32:58Here, his wings aren't just for show.
33:16He's one of the first dinosaurs to be able to glide.
33:29And with such skill that he can even catch food mid-air.
33:40Flight will turn out to be one of the dinosaurs' greatest leaps forward.
33:56But Ankyonis is still just a beginner here.
34:07For the time being, this airspace belongs to the pterosaurs.
34:25The flying dinosaurs are outgunned in the skies for now.
34:36But in time, the pterosaurs will meet their match.
34:48As the planet continues to evolve, so do the dinosaurs.
35:00And as the end of the Jurassic draws nearer, their control over the land on both continents is only getting
35:12stronger.
35:21It's seven million years since Ankyonis took to the air.
35:33Here, in what will one day be North America,
35:41Geothermal heat simmers at the surface.
35:46An echo of past extinctions.
35:59The sauropods here are larger than ever.
36:07Their strategy of bigger is better is paying off.
36:16But these dinosaurs are evolving on an altogether different track.
36:27Stegosaurus.
36:34A far cry from their tiny cheek-stuffing ancestors.
36:42They are now as heavy as elephants.
36:46And equipped with armor, camouflage, and weapons.
36:54And here in the late Jurassic, they need the protection.
37:14Because there is danger in these dark forests.
37:19Because there is danger in these dark forests.
37:27Allosaurus.
37:32Eight meters long, with dagger-like teeth.
37:36They are the most successful predators of their day.
37:47But this young male is not stalking.
37:53He's stealing.
37:57He's stealing.
38:01A female.
38:07Same species.
38:09But larger.
38:11Stronger.
38:12And battle scarred.
38:14Quelques.
38:24You will have to go!
38:26Leave.
38:31To be honest.
38:34A female.
38:38A female.
38:56The young male is lucky she didn't kill him.
39:18The young male is lucky she didn't kill him.
39:44The rainstorms have passed.
39:50The young male hasn't eaten in weeks.
40:01He has no choice but to try his luck on a herd of Stegosaurus.
40:18But he can't hide his approach when he's out in the open.
40:33They form a wall of moving bodies and spikes.
40:43It's intimidating and confusing for the young Allosaurus.
40:52He can't pick out which one to attack.
41:06But he's got other problems.
41:11The veteran female has just joined the game.
41:17And she's been playing this game for a lot longer than he has.
41:29She's able to isolate one of the herd.
41:37But Stegosaurus has evolved a perfect weapon called a thagomizer.
41:46Bump!
41:49Bump!
41:54Bump!
41:56Bump!
41:57Bump!
42:03Bump!
42:09Bump!
42:11Bump!
42:13Bump!
42:14Bump!
42:15Bump!
42:15Bump!
42:17Bump!
42:18Bump!
42:19Bump!
42:20Bump!
42:21Bump!
42:22Bump!
42:22Bump!
42:25Bump!
42:43For the female, it's game over.
42:52For the young male, it's payback, and lunch, because Allosaurus are cannibals.
43:17Fifty million years after surviving an apocalypse, the dinosaur's dominion over Earth is now absolute.
43:39But the world they've come to know is changing.
43:50Temperatures are dropping across the globe, bringing snow to the northern regions of the planet, something few dinosaurs have ever
44:10experienced.
44:18From these frozen lands, a new kind of dinosaur will rise.
44:33The Tyrannosaurs are coming.
45:06The Tyrannosaurus.
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