00:10One hundred and twenty-five million years ago, winter rages across the north.
00:26Entire species have been pushed to the brink.
00:40Even the largest dinosaurs are unable to endure this cold.
00:52Like these sauropods migrating south.
01:04Wreda came early this year and caught them off guard.
01:19With hundreds of kilometers ahead of them, this time it will be an especially harsh journey.
01:33But the bitter cold is not the only danger in this frozen land.
01:41There is a much greater threat here in these woods.
02:06Euteranus, the Snow King.
02:13An early relative of T-Rex.
02:20With a thick, insulating coat of feathers, he's perfectly adapted for life in a world this cold.
02:35But his feathers also serve a more sinister purpose.
02:46An early relative of T-Rex.
02:47Camouflage.
02:49The ultimate weapon for an ambush hunter.
03:16With silent precision, he picks out the smallest member of the herd.
03:42Oh, my God.
03:52In a savage, ever-changing world, some will rise, and some will fall.
04:06But through it all, the dinosaurs will expand their empire and advance relentlessly to seize Earth's final frontiers.
04:34Oh, my God.
04:38Oh, my God.
04:51Oh, my God.
04:55Oh, my God.
05:47It's a new age for life on Earth.
05:52An age of extremes.
05:56New worlds are forming that will give rise to the most famous dinosaurs of all time.
06:10The North is still gripped by cold, but not for much longer.
06:23Earth's most violent forces are stirring once again.
06:33Earth's most violent forces are stirring once again.
06:52But some will pay a price for this warmer world.
06:57But some will pay a price for this warmer world.
07:11It's going on.
07:15It's going to be a war.
07:20It's going to be a place for this moment.
07:32But there's a Pierp.
07:32It's going to be a salt ship.
07:32It's going to be a fire.
07:34There's a busy world, here.
07:38We're going to be a plant.
07:39We're going to be a place for this summer to begin with it.
07:39We're going to go to reach our top right now.
07:45As global temperatures continue to rise,
07:51the snow and ice all but disappear.
08:00Huge, meltwater rivers tear through the land.
08:11This thawing of the north is expanding the dinosaur's empire even further.
08:20And in surprising new ways.
08:30In this fresh, fertile landscape, sauropods no longer need to migrate.
08:39But it's also a new world for one of the dinosaur's oldest rivals.
08:48The pterosaurs.
08:51They are now bigger and badder than ever.
09:01Including Grey Draco, the ghost dragon.
09:13But he's an intruder here.
09:21Because these trees are the home of longipteryx.
09:27A new kind of dinosaur.
09:31Less than 20 centimeters tall.
09:35But highly territorial.
09:37Especially during nesting season.
09:56They're also equipped to take on the pterosaurs.
10:03Now they, too, can fly.
10:16In a previous era, flying dinosaurs like Ancyornis could only glide.
10:25Now they're able to flap their wings.
10:28And maneuver with precision.
10:31To strike at their enemies.
10:43They're fast.
10:45And fearless.
10:47And fearless.
10:58It only gets worse for the towering pterosaur.
11:04Because longipteryx are distant cousins of you Tyrannus, the Snow King.
11:12They're armed with the teeth and claws of their clan.
11:28After ruling the skies since the Triassic.
11:33Pterosaurs are now being matched by the dinosaurs.
11:46But as the dinosaurs fight to expand their empire into the air.
11:53An even greater revolution lies ahead.
12:06Not in the mountains.
12:09Or the skies.
12:12Or the oceans.
12:14The biggest twist in Earth's tale is unfolding quietly.
12:21Almost in secret.
12:27You can die from the Earth.
12:28Sevent million years later.
12:31This new force.
12:33Is slowly rewriting the dinosaur's story.
12:50This is one of the first flowers this forest has ever seen, just one, in a vast and diverse
13:02new generation of plants, and they will become a phenomenon with the help of a close ally, beetles.
13:23They carry pollen from one flower to the next, nature's most reliable delivery service, helping
13:45these new plants spread far and wide across the globe, transforming the dinosaur's empire.
14:12But this new generation of plants has a dark side.
14:25While they need to attract pollinators, many are also evolved to repel herbivores, with
14:38spines, thorns, and poisons.
14:50Nature's defensive weapons.
14:58This green revolution changes everything for the plant-eating dinosaurs.
15:20They are herd animals by nature.
15:25But this young stegosaur, barely two years old, is all alone.
15:39She is the last of her herd.
15:54To eat these tougher new plants requires mouthful and chew food, in a way her primitive jaw
16:02cannot.
16:11She's starving.
16:17She's starving.
16:29She's starving.
16:32to this new world.
16:41It's one reason why their 50 million year existence
16:45will come to an end.
16:50Extinction.
16:58But in the wake of the Stegasaur's demise,
17:03a new era will emerge.
17:11Over the next 15 million years,
17:15these new plants evolve and diversify.
17:21Spreading across the planet and ever further
17:25into the dinosaur's empire.
17:36The Green Revolution now covers the globe.
17:42And not just the land, but the water as well.
17:52Even providing cover and food for underwater explorers like ankylosaurs.
18:27This bathing beauty is a different kind of dinosaur.
18:39He's a plant eater, like the Stegasaurs, but a fancier one.
18:46Much fancier.
18:54Because unlike the Stegasaurs, his advanced jaw can crush food
19:02in a way that makes eating any kind of plant easy.
19:09It's the perfect adaptation for this diverse new world.
19:22He wants to take full advantage of all this great kingdom has to offer.
19:30He wants to take full advantage of all this great kingdom.
19:30And he has a plan.
19:41It's a long trek.
19:46But the journey is worth it.
20:07This is the one place where he can truly be himself.
20:23His passion is singing.
20:33He even has special allos in his snout that amplify his song, so it can be heard far
20:47and wide.
21:31A female has answered his call.
21:37It's time to charm her with his deep, sultry humming.
21:49Then, he shows her his stylish armor.
22:04It's all very persuasive.
22:27Their fancy attire does have some drawbacks, mind you.
22:35On the whole, though, heavy armor and an improved jaw are setting them up for success.
22:50But what no dinosaur could possibly know is that their empire has been gradually shrinking.
23:04Hidden below the waves, this world, once ruled by dinosaurs, is now completely out of their
23:18reach.
23:25And there's a reason, at the very bottom of the ocean.
23:36A slow, imperceptible shift reshaping the planet.
23:51The seabed is fracturing from an endless progression of eruptions.
24:25Earth's tectonic plates are shifting.
24:30Breaking apart the ocean floor, lifting it higher over millions of years.
24:42The water above has nowhere else to go but up.
24:49By the middle of the Cretaceous sea levels reach their highest point in history.
24:57Over 200 meters higher than they are today.
25:18The rising oceans repaint the map of the world, erasing entire land masses.
25:30The continent of Europe is reduced to a giant archipelago that includes the Isle of Herzig.
25:45A world where isolation and evolution have created a kind of neverland for the dinosaurs.
25:54A world where normal rules don't apply.
26:05This is the home of Magyarosaurus.
26:10A sauropod.
26:15And, like other sauropods, he uses his long neck to reach the highest vegetation.
26:33The thing is, this vegetation is only two meters tall.
26:41Which makes Magyarosaurus about the size of a pony.
27:03On Hatzegg, where there's limited space and food, sometimes smaller is better.
27:27But, unlike Magyarosaurus, for predators, digger is still better.
27:49As tall as a giraffe, one of the largest pterosaurs to ever live.
28:00The nightmare Hatzegopteryx.
28:02The nightmare Hatzegopteryx.
28:10She's flown to this island to feed on dinosaurs.
28:25The youngest member of the herd gets separated.
28:36But it won't be an easy catch.
28:41Unlike his giant cousins, he's white on his feet.
29:13You can't climb it.
29:24They found a safe hiding spot, perfect for their size.
30:12They found a safe hiding spot, and they found a safe hiding spot.
30:15. . .
31:12The tiny dinosaurs trapped on an island.
31:17There's nowhere else to go.
31:31But in a world so divided by the ocean, evolution takes different turns in different places.
31:53The sea levels are close to the highest they've ever been, creating a water world that no dinosaur has dared
32:10to enter.
32:19But that's about to change.
32:35Lurking in this mangrove swamp is a carnivore that has specially evolved to take on the final frontier.
32:56A dinosaur pioneer.
33:12Spinosaurus.
33:13Spinosaurus.
33:17Spinosaurus.
33:19Spinosaurus.
33:20The largest predator to ever walk the earth.
33:27Spinosaurus.
33:40Spinosaurus.
33:41The forest provides plenty of prey.
33:48But another reason she's gotten this big
33:52is because of where she goes to escape the gloom of the swamp.
34:14Here, the high sea levels have turned the oceans
34:18into a new hunting ground for the dinosaurs.
34:23Where bigger is definitely better.
34:54Spinosaurus is adapted to a planet that is now mostly ocean.
35:01And in this age, some of the largest prey is here in the water.
35:23Sharks.
35:29In a flat-out chase between a shark and a giant dog-paddling dinosaur,
35:35the shark will always win.
35:42But there's more to Spinosaurus than meets the eye.
35:53Dinosaurs aren't just becoming bigger.
35:57Some are cunning, too.
36:01She's going to make the sharks come to her.
36:15Her snout is wired with sensors that can detect the slightest movement.
36:31She's going to continue 출
36:32with the pupal finds her that is her.
36:40These decide she will be well-minded.
36:41She'll possibly be killed, Jacob.
36:49Throne was sick and given the
36:51...are the patient ones.
36:55And her patience is starting to pay off.
37:06The blood in the water is drawing the sharks closer.
37:32The tubes that Mannheimer grew and it is only in the text and a Worthy.
37:33We are full of maintenant!
37:34There are turns of this Você kommt Agreement-
37:36that as nuance셨어요.
37:38The answer is summer-
37:54She doesn't move.
38:00She knows how this game is played.
38:23Brains and brawn, a killer combination that is finally letting the dinosaurs get a foothold
38:35in the ocean.
38:46Their reach is now global and extends to the very ends of the Earth, to what will one day
39:00be Antarctica.
39:11While Spinosaurus is stalking the shallow seas and the tropics, the world's southernmost
39:20landmass is not the frozen wilderness we know today.
39:26It's a green, flourishing Eden.
39:35Where even in the dark, evolution is lighting the way.
39:51And thriving in the darkness are the dinosaurs.
40:09By this stage in the late Cretaceous, their empire is so vast that they now dominate every
40:18continent on Earth.
40:28And yet, while their reign is global, and their rule almost unchallenged, their story will take
40:45a dark turd.
40:46They are little cleaner.
40:52Now they are long to be dead, once it came out to掃除 her ancestors, you were
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