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.
02:36But his feathers also serve a more sinister purpose.
02:47Camouflage.
02:48The ultimate weapon for an ambush hunter.
02:57Camouflage.
03:16With silent precision, he picks out the smallest member of the herd.
03:52In a savage, ever changing world, some will rise and rise.
03:59And some will fall.
04:06But through it all, the dinosaurs will expand their empire and advance relentlessly to seize
04:18Earth's final frontiers.
04:46To be continued...
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08:20and in surprising new ways.
08:30In this fresh, fertile landscape,
08:35sauropods no longer need to migrate.
08:39But it's also a new world
08:42for one of the dinosaur's oldest rivals.
08:49And the pterosaurs.
08:51They are now bigger and badder than ever.
09:01Including Gway Draco, the ghost dragon.
09:13But he's an intruder here.
09:21Gway Draco, the ghost dragon.
09:23Because these trees are the home of longipteryx.
09:27A new kind of dinosaur.
09:31Less than 20 centimeters tall,
09:35but highly territorial.
09:38Especially 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 Ancyonis could only glide.
10:25Now they're able to flap their wings
10:29and maneuver with precision to strike at their enemies.
10:42They're fast, and fearless.
10:57They're fast, and fearless.
11:03Because long Ipterix are distant cousins of Eutyrannus, the Snow King.
11:12They're armed with the teeth and claws of their clan.
11:28After ruling the skies since the Triassic, pterosaurs are now being matched by the dinosaurs.
11:46But as the dinosaurs fight to expand their empire into the air, an even greater revolution lies ahead.
12:06Not in the mountains, or the skies, or the oceans.
12:14The biggest twist in Earth's tale is unfolding quietly, almost in secret.
12:27Seven million years later, this new force is slowly rewriting the dinosaur story.
12:50This is one of the first flowers this forest has ever seen.
12:56Just one.
12:59In a vast and diverse new generation of plants.
13:07And they will become a phenomenon with the help of a close ally.
13:21Beetles.
13:23They carry pollen from one flower to the next.
13:35Nature's most reliable delivery service.
13:44Future.
13:45Helping these new plants spread far and wide across the globe.
13:57Transforming the dinosaurs empire.
14:12But this new generation of plants has a dark side.
14:25While they need to attract pollinators,
14:29many are also evolved to repel herbivores.
14:38With spines, thorns, and poisons.
14:50Nature's defensive weapons.
14:58This green revolution changes everything for the plant-eating dinosaurs.
15:08Including the great stegosaurs.
15:21They 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.
16:00In a way her primitive jaw cannot.
16:11She's starving.
16:13She's starving.
16:27These once great herbivores are unable to adapt to this new world.
16:41It's one reason why their 50 million year existence will come to an end.
16:50Extinction.
16:50Extinction.
16:59But in the wake of the stegosaur's demise, a new era will emerge.
17:06Extinction.
17:12Over the next 15 million years.
17:15These new plants evolve.
17:18And diversify.
17:20Spreading across the planet.
17:24And ever further into the dinosaur's empire.
17:36The green revolution now covers the globe.
17:42And not just the land.
17:45But the water as well.
17:52Even providing cover and food for underwater explorers.
18:04Like ankylosaurs.
18:26This bathing beauty is a different kind of dinosaur.
18:38He's a plant eater.
18:40Like the stegosaurs.
18:43But a fancier one.
18:45Much fancier.
18:53He's a plant eater.
18:54Because unlike the stegosaurs, his advanced jaw can crush food in a way that makes eating any kind of plant
19:05easy.
19:08It's the perfect adaptation for this diverse new world.
19:21He wants to take full advantage of all this great kingdom has to offer.
19:29And he has a plan.
19:40It's a long trek.
19:45But the journey is worth it.
19:54It's a long trek.
19:55It's a long trek.
20:01It's a long trek.
20:04It's a long trek.
20:06This is the one place where he can truly be himself.
20:10of. His passion is singing. He even has special olives in his snout that amplify his song.
20:43So it can be heard far and wide.
21:12Shhh.
21:13Shhh.
21:14Shhh.
21:15Shhh.
21:15Shhh.
21:30A female has answered his call.
21:36It's time to charm her with his deep, sultry humming.
21:48Then, he shows her his stylish armor.
22:04It's all very persuasive.
22:26Their fancy attire does have some drawbacks, mind you.
22:34On the whole, though, heavy armor and an improved jaw are setting them up for success.
22:49But what no dinosaur could possibly know is that their empire has been gradually shrinking.
23:03Hidden below the waves, this world, once ruled by dinosaurs, is now completely out of their reach.
23:24And there's a reason.
23:31At the very bottom of the ocean, a slow, imperceptible shift reshaping the planet.
23:50The seabed is fracturing from an endless progression of eruptions.
24:24Earth's tectonic plates are shifting.
24:29Breaking apart the ocean floor, lifting it higher over millions of years.
24:41The water above has nowhere else to go but up.
24:48By the middle of the Cretaceous, sea levels reach their highest point in history.
24:55Over 200 meters higher than they are today.
25:17The rising oceans repaint the map of the world, erasing entire land masses.
25:29The continent of Europe is reduced to a giant archipelago that includes the Isle of Herzig.
25:44A world where isolation and evolution have created a kind of neverland for the dinosaurs.
25:54A world where normal rules don't apply.
26:04This is the home of Magyarosaurus, a sauropod.
26:14And, like other sauropods, he uses his long neck to reach the highest vegetation.
26:32The thing is, this vegetation is only two meters tall.
26:40Which makes Magyarosaurus about the size of a pony.
27:01On Hatzeg, where there's limited space and food, sometimes smaller is better.
27:26But unlike Magyarosaurus, for predators, bigger is still better.
27:48As tall as a giraffe, one of the largest pterosaurs to ever live.
27:59The nightmare Hatzegopteryx.
28:01The nightmare Hatzegopteryx.
28:09She's flown to this island to feed on dinosaurs.
28:24The youngest member of the herd gets separated.
28:35But it won't be an easy catch.
28:40Unlike his giant cousins, he's light on his feet.
28:45it'll be an easy catch.
29:13He can't see the others.
29:23They found a safe hiding spot, perfect for their size.
29:48To be continued...
30:21I don't know.
30:49I don't know.
31:11The tiny dinosaurs, trapped on an island, has nowhere else to go.
31:30But in a world so divided by the ocean, evolution takes different turns in different places.
31:48Ninety-six million years ago, sea levels are close to the highest they've ever been.
32:05Creating a water world that no dinosaur has dared to enter.
32:18But that's about to change.
32:34Lurking in this mangrove swamp is a carnivore that has specially evolved to take on the final frontier.
32:55A dinosaur pioneer.
33:11Spinosaurus.
33:12Spinosaurus.
33:16Spinosaurus.
33:19Spinosaurus.
33:19The largest predator to ever walk the Earth.
33:25Spinosaurus.
33:27Spinosaurus.
33:30Spinosaurus.
33:31Spinosaurus.
33:39Spinosaurus.
33:41Spinosaurus.
33:42provides plenty of prey but another reason she's gotten this big is because
33:52of where she goes to escape the gloom of the swamp
34:13here the high sea levels have turned the oceans into a new hunting ground for the dinosaurs
34:22where bigger is definitely better
34:52spinosaurus is adapted to a planet that is now mostly ocean
35:00and in this age some of the largest prey is here in the water
35:22sharks
35:28in a flat-out chase between a shark and a giant dog paddling dinosaur
35:34the shark will always win
35:41but there's more to spinosaurus than meets the eye
35:52dinosaurs aren't just becoming bigger
35:56some are cunning too
36:00she's going to make the sharks
36:02come to her
36:15her snout is wired with sensors that can detect the slightest movement
36:25now all she needs to do
36:29is keep completely still
36:47the best hunters are the patient ones
36:54and her patience is starting to pay off
37:05the blood in the water is drawing the sharks closer
37:09her
37:10her
37:10the
37:20her
37:37is
37:39the
37:53She doesn't move.
37:59She knows how this game is played.
38:22Brains and brawn, a killer combination that is finally letting the dinosaurs get a foothold
38:34in the ocean.
38:45Their reach is now global and extends to the very ends of the Earth, to what will one day
38:59be Antarctica?
39:10While Spinosaurus is stalking the shallow seas and the tropics, the world's southernmost
39:19landmass is not the frozen wilderness we know today.
39:26It's a green, flourishing Eden, where even in the dark, evolution is lighting the way.
39:50And thriving in the darkness are the dinosaurs.
40:08By this stage in the late Cretaceous, their empire is so vast that they now dominate every
40:17continent on Earth.
40:27And yet, while their reign is global, and their rule almost unchallenged, their story will take
40:44a dark turn.
40:45?
40:47?
40:47?
40:47?
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