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.
03:16The ultimate weapon for an ambush hunter.
03:41Oh, 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.
04:31In a savage, ever-changing world, some will rise, and some will rise.
04:44In a savage, ever-changing world, some will rise, and some will rise, and some will rise.
05:17We're right.
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 staring once again.
06:33Volcanoes seethe and fume, warming the planet.
06:52But some will pay a price for this warmer world.
07:18The North is still alive.
07:25The North is still alive.
07:29The North is still alive.
07:45The North is still alive.
08:00Here, huge, meltwater rivers tear through the land.
08:11This thawing of the north is expanding the dinosaur's empire even further, and in surprising
08:22new ways.
08:31In this fresh, fertile landscape, sauropods no longer need to migrate.
08:40But it's also a new world for one of the dinosaur's oldest rivals, the pterosaurs.
08:51They are now bigger and badder than ever, including Grey Draco, the ghost dragon.
09:13But he's an intruder here, because these trees are the home of Longipteryx, a new kind
09:29of dinosaur, less than 20 centimeters tall, but highly territorial, especially during
09:41nesting 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 and maneuver with precision to strike at their enemies.
10:43They're fast and fearless.
10:58It only gets worse for the towering pterosaur, because Longipteryx are distant cousins of
11:08Eutyrannus, the snow king.
11:13They'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
11:57ahead.
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.
12:23Not in secret.
12:27Seven million years later, this new force is 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, but 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.
16:13Pulling usuumbling.
16:25a giantuuuuet
16:27These once-great herbivores are unable to adapt to this new world.
16:42A분isky
16:43their 50-million-year existence will come to an end.
16:49Extinction.
16:59But 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,
17:20spreading across the planet
17:23and ever further into 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
17:58for underwater explorers
18:05like ankylosaurs.
18:27This bathing beauty
18:29is a different kind of dinosaur.
18:39He's a plant-eater, like the Stegasaurs,
18:44but a fancier one.
18:46Much fancier.
18:54Because unlike the Stegasaurs,
18:58his advanced jaw can crush food
19:02in a way that makes eating any kind of plant easy.
19:09It's the perfect adaptation
19:12for this diverse new world.
19:22He wants to take full advantage
19:24of all this great kingdom has to offer.
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 hollows in his snout
20:36that amplify his song.
20:44so it can be heard far and 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 reach.
23:25And there's a reason.
23:32At the very bottom of the ocean, a slow, imperceptible shift reshaping the planet.
23:51The seabed is fracturing from an endless progression of eruptions.
24:25Earth's tectonic plates are shifting.
24:29Breaking 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.
25:24Erasing entire land masses.
25:30The continent of Europe is reduced to a giant archipelago.
25:36That includes the Isle of Hatzeg.
25:45Where 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.
26:33Thing is, this vegetation is only two meters tall.
26:41Which makes Magyarosaurus about the size of a pony.
27:02On Hatzeg, 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.
27:52One of the largest pterosaurs to ever live.
28:00The nightmare Hatzegopteryx.
28:02The nightmare Hatzegopteryx.
28:09She'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 light on his feet.
29:12But being this small.
29:14He can't see the other side.
29:24They found a safe hiding spot.
29:27Perfect for their size.
29:30To the other side.
29:34To the other side.
29:37To the other side.
29:57The father of the angel is not gonna have a good life.
30:09Ah!
30:38I don't know.
31:12The tiny dinosaurs, trapped on an island, has nowhere else to go.
31:31But in a world so divided by the ocean, evolution takes different turns in different places.
31:49Ninety-six million years ago, sea levels are close to the highest they've ever been.
32:06Creating a water world that no dinosaur has dared to 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.
33:26Spinosaurus.
33:30Spinosaurus.
33:38Spinosaurus.
33:41Spinosaurus.
34:07Spinosaurus.
34:14Here, the high sea levels have turned the oceans into a new hunting ground for the dinosaurs,
34:24where bigger is definitely better.
34:54Spinosaurus is adapted to a planet that is now mostly ocean and in this age some of the
35:04largest prey is here in the water.
35:23Sharks.
35:29In a flat-out chase between a shark and a giant dog-paddling dinosaur, the shark will always
35:38win.
35:42But there's more to Spinosaurus than meets the eye.
35:53Dinosaurs aren't just becoming bigger, some 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.
36:25She's going to make the sharks.
36:26Now, all she needs to do is keep completely still.
36:48The best hunters are the patient ones.
36:55And her patience is starting to pay off.
37:06The blood in the water is drawing the sharks closer.
37:24the dark in the sea.
37:28The water is coming from the ocean.
37:31This can be the only way down to the ocean.
37:32That's Cap, that's the lastacio is getting better.
37:38We haven't seen the sand in the sea before.
37:39Viewers see the shells, any longer or more space-wide.
37:39She's waiting for the journey to the sea.
37:39So we cannot be able to clean the ocean.
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, where 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.
41:27Which will finally produce us?
41:27Even in this space, it's when a floating in the sea will be perceived.
41:28This is where it comes from, and in the rough of the day, and the rise of the sea will
41:30recover the
41:30It's very, very sufficient.
41:33For this place, we have to do the future of the sea and the space of the sea will be
41:34rather large.
41:34Maybe we will be able toë let the world 표 in the inner sea and the sea, which is
41:35We will not have to keep our potential.
41:35The world of the sea will be the sea.
41:35So far, we will be the sea and and the sea will be the sea.
41:36How can you praises?
41:39The sea is the sea and the sea.
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