00:15In the depths of space, a threat is looming.
00:22Trapped between the orbits of Jupiter and Mars,
00:28the asteroid belt.
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
01:22of our solar system.
01:34But its journey will come to a sudden and violent end,
01:41in one of the most catastrophic events in Earth's history.
01:50And the final chapter in the epic story of the dinosaurs.
01:58Popoles in future after retreatлин highly
02:14Our humanity homes are much better than understandable
02:19to such occasion.
02:19Our enemy is not capable for those whoared
02:26or auditioned,
02:27whereas If we cannot remain,
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.
05:04Not even remotely.
05:08This is Hesperonis.
05:12He 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 grounds that were
06:29previously 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 ninety-four needle-sharp teeth snatch fish with ease.
07:37But as an air breather,
07:41he's still tied to the surface.
07:56And the surface is not a safe place to linger.
08:03Because below, there are beasts.
08:09Twice the size of a killer whale.
08:28The apex predators of these seas.
08:33The apex predators of these seas.
08:41two four ogres.
08:43And we're gonna have a good place to meet the мамac.
08:44How can they also win?
08:50The apex predator of the earth.
08:50But the Mosasaur moves with frightening speed.
08:56Luckily, The trout is way too far.
09:01The female dragon's eyeing in wit.
09:07But he's exhausted, which gives the Mosasaur one last shot.
09:37Esperonis is a true survivor, venturing further into the ocean than any dinosaur ever has.
09:49But these waters are treacherous, even for the best swimmers.
10:02Despite the dinosaur's success in the shadows, the Mosasaurs 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 sauropods 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, because nothing can stop a mother on a mission.
11:45And that mission is to feed her family, who 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.
12:40They're in the safety of the creche.
12:43A 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.
13:24Feeding in this bird-like way takes a lot of refills.
13:30So, she's constantly leaving to go find food.
13:36And when moms are away, little ones will play.
14:05With the wingspan of a fighter jet,
14:10pterosaurs are now bigger than ever.
14:15And creches are the perfect hunting grounds.
14:19Where unguarded nests are the easiest pickings.
14:43Despite the threat from this towering monster,
14:46the mothers will defend their babies at all costs.
15:07But the giant pterosaur is determined to feed.
15:16The giant pterosaur is determined to feed.
15:20The screams from the nest are like a dinner bell to the predator.
15:40But the little ones aren't just crying in fear.
15:45They're calling for help.
15:47A
16:06This theorist instinct to protect their young...
16:10is central to the hydrosaurs' 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 that the continent of North America will shift.
16:53The land buckling up into the sky.
17:06The Rocky Mountains.
17:11It's here in the foothills below that the dinosaurs are making an impact.
17:28Pachycephalosaurus.
17:31Using their outrageously thick skulls.
17:37To duel for supremacy.
17:46And alongside them, a dinosaur with even more impressive headgear.
18:01Triceratops.
18:10She may look like a rhinoceros.
18:13But she's twice the size of one.
18:19And armed with spear-like horns over one meter in length.
18:32Triceratops and Pachycephalosaurus have impressive weapons.
18:40Yet there are some here that are even more armed and dangerous.
18:58Under the cover of darkness.
19:00The latest and greatest of the armored warriors.
19:06Six meters long.
19:09Six meters long and highly territorial.
19:15Ankylosaurus.
19:16Magniventris.
19:25He's on patrol for intruders.
19:30bold enough
19:31to breach his borders.
19:41His tank-like torso
19:43is covered in dozens
19:45of thick, bony plates.
19:53And what's more,
19:56he has a powerful
19:57new weapon.
20:03A club-like tail
20:05weighing half a ton
20:08that he can use
20:09to take on whatever stalks
20:11these forests.
20:18He senses something.
20:20A-a-a-a.
20:23A-a-a-a!
20:28A-a-a-a-a-a!
20:50His borders have been breached by the worst possible intruder of all.
21:10A tyrannosaurus rex.
21:42A tyrannosaurus rex.
21:45A tyrannosaurus rex.
22:00A tyrannosaurus rex.
22:39Ankylosaurus versus T-Rex.
22:52An evolutionary stalemate.
22:55Millions of years in the making.
23:18But in this arms race, there's one thing that does set these dinosaurs apart.
23:29Intelligence.
23:30Intelligence.
23:31No!
23:33No!
23:35No!
23:35No!
23:36No!
23:46No!
23:49No!
23:50No!
23:53No!
24:08No!
24:13T-Rex is one of the most fearsome predators of all time, and to remain at the top of
24:23her game, she must eat the equivalent of 200 steaks every day.
24:33And yet, so far, she hasn't eaten a single bite.
24:42That's because she has special plans for this takeout meal.
24:53But Ankylosaurus is no light snack.
25:04Six tons of muscle and bone with an assortment of lumps and bumps.
25:24Even for T-Rex, it's quite a drag.
25:28It's quite a drag.
25:31It's quite a drag.
25:33It's quite a drag.
25:34It's quite a drag.
25:54It's quite a drag.
25:59It's quite a drag.
26:06It's quite a drag.
26:29It's quite a drag.
26:30It's quite a drag.
26:34It's quite a drag.
26:54It's tall.
26:56It's quite a drag.
26:57It's quite a drag.
26:58It's quite a drag.
27:24to give them the very best start in life.
27:32Something their distant ancestors could only dream of.
27:41Far back in the Triassic,
27:43tiny Marasuchus hatched into hell.
27:48These dinosaurs in the making,
27:52forced to live in the shadows,
27:56hiding from the ruling reptiles.
28:02But when fate intervened,
28:06they turned catastrophe into opportunity,
28:14and began their monumental rise,
28:20growing bigger, stronger, and ever more formidable.
28:32In time, they would triumph, not just on land,
28:40but in the sea and the sky.
28:46After 160 million years,
28:50the dinosaurs are now so dominant,
28:55nothing on Earth can stand in their way.
29:05But something not of this Earth will.
29:11Because as this family's journey is just getting started,
29:17another journey is approaching its end.
29:26The asteroid, now hurtling towards Earth at 50 times the speed of sound,
29:34will finally have its date with destiny.
29:38the enemy.
30:11It smashes into the ocean off the coast of Mexico,
30:18with the power of a billion atomic bombs.
30:23Temperatures are hot enough to vaporize the seabed,
30:29along with every living thing for hundreds of kilometers.
30:43far away in the foothills of the Rockies.
30:47These great dinosaurs have no idea what's about to hit them.
31:15The largest earthquakes in history.
31:19The largest earthquakes in history.
31:23fire.
31:27mini blessing.
31:28But the worst is yet to come.
31:32The worst is yet to come.
31:33An enormous wall of superheated debris explodes outwardly.
31:42thecircle twang come to work.
31:43Thestmile falty wasavil位's protected from the Rigby
31:56The dinosaurs, caught beneath this death cloud, are entombed.
32:07Their world is so hot, it literally bursts into flames.
32:20Even the toughest armor is no protection.
32:34The cloud quickly engulfs the entire planet, suffocating it with ash,
32:43shrouding it in darkness.
33:14It's dangerous.
33:31The few, still standing at the end of the day, are in a nightmare, choking in the gloom.
34:13The few, still standing at the end of the day, are in a nightmare, choking in the gloom.
34:14For the dinosaurs, is catastrophic.
34:48In the days, an impact winter descends on the earth.
34:59Global temperatures drop by 25 degrees Celsius.
35:07Conditions too cold for almost any dinosaur to withstand.
35:26Giant sauropods laid to rest in the cinders of the buried trees that made them so tall.
35:51In their crowded colonies, those who lived together, died together.
36:07Protective mothers cannot shield their young from their freezing temperatures.
36:19The punishing cold has also taken its toll on the most famous dinosaur of all.
36:35The tyrant king has fallen.
37:00Even the mighty tyrannosaurus rex will not survive this.
37:13The tyrant is a nightmare.
37:14The tyrant is a nightmare.
37:31The tyrant is a nightmare.
37:38The reign of the dinosaurs has finally come to an end.
38:15But 66 million years later, the dinosaurs are rising again.
38:29This time, at our hands.
38:40Today, their fossils stand as monuments to a lost world.
38:47But more than that, they are the keys that unlock the secrets of the dinosaur story.
38:58Our understanding of their lives is now greater than ever.
39:04From their very first moments to their very last.
39:13And the revelation that on Earth's darkest day, not all dinosaurs died.
39:23Some were small enough to find shelter from the apocalypse.
39:32And survive even to this day.
39:39The flying dinosaurs we now call the birds.
39:49And the clues to their past are hiding in plain sight.
40:16The remarkable journey that started 235 million years ago continues.
40:26Alongside us.
40:30They are the last remaining link.
40:34To a long lost kingdom.
40:38That was the age of the dinosaurs.
40:45Of course.
40:46Of course.
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