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Two hundred and one million years ago...

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the world of dinosaurs
collapses beneath them.

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The continent of
Pangea is breaking apart...

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creating a great divide…

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and molten apocalypse

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for every being caught in this hell.

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For both reptiles and dinosaurs...

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escape is impossible.

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But the worst is yet to come.

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Invisible killer
suffocates the very air.

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Clouds of toxic gases

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to cause damage.

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Acid fog

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it poisons everything in its path.

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Since the gases
in the atmosphere they condense,

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temperatures are rising

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destroying three quarters
of all plant species.

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and millions of animals across the planet.

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It is known as
the mass extinction at the end of the Triassic,

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and this will change everything
about dinosaurs

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because of their flexibility
and their ability to adapt

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to help them survive this disaster

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much better than reptiles.

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The reign of the ancient reptiles is over.

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With their rivals no longer in the way…

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dinosaurs now have a chance
to rise from the ruins...

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and conquer the world.

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Two million years later,

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the beginning of the most famous era
in Earth's history.

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The Jurassic.

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Pangea has split into two new landmasses.

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In the southern continent of Gondwana...

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life flourishes again.

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Pterosaurs survived the destruction…

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heaven forbid
to seek refuge away from the chaos.

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Now there are endless forests here.

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And they are full of dinosaurs.

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Dinosaurs like Massospondylus.

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His height is barely that of a man,

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so it is difficult to reach
the freshest food high in the trees.

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But he has a bigger problem.

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A newly developed rival.

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Vulcanodon.

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Its length is 11 meters,

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it is more than twice as large
of Massospondylus.

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It is part of a new branch
of herbivorous dinosaurs

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known as

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the sauropods.

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Known for their long necks

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and huge bodies

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which are supported by four legs,
instead of just two.

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These profound changes
will help these giants

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become the largest animals
who once walked the Earth.

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If Massospondylus can't compete,

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she will be abandoned.

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While sauropods are on the rise…

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another legend in the making
waiting in the wings.

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Caves like these
are full of strange creatures…

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and one of them will give the beginning of
of some of the greatest dinosaurs

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in history.

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The Little Heterodontosaurus.

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What makes it exceptional
it's hard to notice at first.

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However, one thing is clear.

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He is not one to give up
out of challenge.

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Especially when it comes to food.

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It's all about the food.

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He can only weigh as much as a chihuahua…

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but he has a superpower.

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Incredibly strong beak and jaw

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which allow it to absorb almost anything.

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And that's not all.

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He also has cheek pouches,

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where it can store food
to eat it later in a safe place.

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This multi-functional mouth tool
will allow his descendants

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to become some
of the greatest dinosaurs of all time.

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Descendants like the mighty Stegosaurus

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and even a triceratops.

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From a small beginning,
great things can grow.

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But the dinosaurs
they will need more than cheek pouches

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to conquer the planet.

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On the north side of the Great Rift

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the other new continent is located.

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Laurasia.

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Hidden in these waters

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are remnants of a once great empire.

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The reptiles.

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They are a deadly threat
in these gloomy shallows.

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But they also need to watch out for…

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because they no longer rule
in the Jurassic swamps.

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They have been usurped

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of those who have ever hunted.
along the shores of Pangea.

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Dinosaurs.

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Dilophosaurus.

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With over 60 jagged teeth,

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it is twice as long as a polar bear.

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And a laser-focused hunter.

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But in these flooded forests...

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there are creatures
even scarier than her.

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Like a butterfly to a flame,
she follows the mysterious calls.

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Male Dilophosaurus.

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Bigger and deadlier than her.

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He brought her here for a reason.

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But it's not bloodlust,

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it is mere lust.

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Courtship ritual.

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Dragging the ground
is a manifestation of power.

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And to demonstrate his masculinity,

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look at the colors on his head.

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Finally,

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the grand finale.

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The song of the swamp king.

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For a fierce predator,
he is remarkably gifted.

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But the future of her bloodline
depends on her choice.

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And he's just...

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not gifted enough.

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Ensuring the continuation of
of their species is crucial.

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But far below,

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the land itself poses a threat
for their very existence.

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This time...

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from the Jurassic seas.

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A foreign world...

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full of whimsical creatures.

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The most dangerous of them all...

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the pliosaurs.

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The great sea monsters
who rule the oceans.

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They are one of the reasons

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that the dinosaurs
have not entered this limit.

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But the real threat to the dinosaurs

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lies below.

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Methane.

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This greenhouse gas

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is frozen under the sea floor
for millions of years.

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But the warming of the oceans
leads to its extraction

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with a devastating side effect
for the whole globe.

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Extreme heat.

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The endless forests
that once inhabited Massospondylus

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now they are a parched wasteland.

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The plants he relied on for food
almost all have disappeared.

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Many of his kind
they starved to death.

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And rising temperatures
turn his home into a fire pit.

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This is the final nail in the coffin…

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for Massospondylus.

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Their 17 millionth existence
ends tragically.

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After all, other dinosaurs
will appear in their place.

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During this time the two continents of the Earth
will move further apart from each other,

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creating a fragmented world

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with new lands
for the dinosaurs to conquer.

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It is more than 20 million years old
from the fall of Massospondylus.

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And here, in the mountains.
of what will one day be China,

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the climate has cooled.

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Life is flourishing.

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And a revolution is taking place right now.

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In these cold woods at dawn,

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something is moving.

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Sauropods.

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The big four-legged dinosaurs.

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Mamenchisaurus.

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A giant from the Jurassic period.

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Nearly 40 million years
after their ancestor Vulcanodon

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made its monumental rise,

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Mamenchisaurus is already so gigantic

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that standing up itself is a difficult task.

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They have the longest necks
of all the animals in history,

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which can reach up to
like a five-story building.

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And they are not the only giants
who live in this forest.

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The trees are reaching
and ever greater heights,

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to avoid complete exhaustion
of these huge beasts.

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But being so tall has a catch.

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15-meter neck
can only support a small head…

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in which the brain is located

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smaller than an apple.

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Evolutionary focus on size instead of intelligence

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will help sauropods
to become the most dominant herbivores

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from the Jurassic period.

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But they are not the only ones.
in this forest

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that rise up in the world.

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Anchiornis.

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Yes, he looks a bit like a chicken.

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And he is the size of a man.

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But nevertheless he is

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dinosaur.

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Dinosaur with feathers...

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and newly developed wings.

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Sinraptor.

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Another dinosaur.

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But a willing one
to hunt his little cousin.

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His primitive wings
are almost worthless on earth.

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But that doesn't mean.
that he is pinned to the ground.

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Up here, his wings aren't just for show.

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He is one of the first dinosaurs
which can slide.

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And with such skill
that it can even catch food in the air.

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The flight will turn out to be one of
the greatest leaps of the dinosaurs.

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But Anchiornis
still a beginner here.

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For now,

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this airspace...

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belongs to pterosaurs.

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The flying dinosaurs
are excelled in heaven

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for now.

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But over time,

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the pterosaurs will meet their rival.

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The planet continues to evolve,

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as well as dinosaurs.

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And finally
nearing the end of the Jurassic period,

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their control over the land
on both continents

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is getting stronger.

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That's seven million years
since Anchiornis took to the air.

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Here, in what
one day it will be North America…

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geothermal heat boils at the surface.

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Echoes of past disappearances.

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00:36:14,797 --> 00:36:19,093
The sauropods here are bigger than ever.

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Their strategy is "bigger is better
it pays off.

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00:36:32,148 --> 00:36:38,987
But these dinosaurs are evolving
in a completely different way.

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Stegosaurus.

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Far from
their little cheeks-stuffing ancestors.

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Now they are as heavy as elephants,

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and is equipped with armor,
camouflage and weapons.

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And here, at the end of the Jurassic period,

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they need protection.

219
00:37:30,081 --> 00:37:33,917
Because there is danger
in these dark woods.

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00:37:42,260 --> 00:37:44,220
Allosaurus.

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Eight meters long, with dagger teeth,

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they are the most successful predators
of his time.

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00:38:02,738 --> 00:38:05,908
But this young man did not pursue.

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He steals.

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A woman.

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the same kind

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but bigger, stronger and battle-scarred.

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The young male is lucky
that she didn't kill him.

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The rain storms have passed.

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00:40:05,945 --> 00:40:09,031
The young male hasn't eaten in weeks.

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00:40:16,580 --> 00:40:20,960
He has no choice
except to try his luck in a herd

232
00:40:21,669 --> 00:40:23,294
of the stegosaurus.

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00:40:33,722 --> 00:40:37,434
But he cannot hide his approach
when outdoors...

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which gives the herd time
to prepare his defense.

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They form a wall
from moving bodies and spikes.

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This is scary...

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and confusing to the young allosaurus.

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He cannot choose who to attack.

239
00:41:21,979 --> 00:41:24,148
But he has other problems.

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The female veteran
she just joined the game.

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And she plays this game

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for a much longer time than he did.

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She manages to isolate one of the herd members.

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00:41:53,385 --> 00:41:58,182
But the stegosaurus
has developed a perfect weapon.

245
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An owl-like tail with meter spikes

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called thagomizer.

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It's game over for the woman.

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00:43:13,424 --> 00:43:16,302
For the young man, this is revenge.

249
00:43:19,305 --> 00:43:21,307
And lunch.

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Because allosaurs are cannibals.

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Fifty million years
having survived an apocalypse,

252
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the dinosaurs rule over the Earth
it is already absolute.

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But the world they know.

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is changing.

255
00:44:10,230 --> 00:44:13,484
Temperatures are dropping
all over the world...

256
00:44:19,281 --> 00:44:24,244
bringing snow
in the northern regions of the planet.

257
00:44:26,997 --> 00:44:32,002
Something a little dinosaur
ever experienced.

258
00:44:38,842 --> 00:44:41,552
From these frozen lands,

259
00:44:41,553 --> 00:44:43,681
a new kind of dinosaur

260
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will rise.

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00:44:54,233 --> 00:44:57,819
The tyrannosaurs are coming.