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00:41:17
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Dozens of male Ornithomimus are preparing
A couple of hadrosaur wander by.
As winter slackens its grip, meltwater begins to flow with great power.
is one of the smaller members of the theropod group.
With little to eat, these huge herbivore return
They bring mouthful of plants for them to eat.
These are the tiny lures of fungus gnat larva
These are the tiny lures of fungus gnat larvae
The autumn rut is over,
dinosaurs ambush, display, and even journey underground.
These strange ostrich-like dinosaurs choose the safety of these islands
The blizzard now brings a temporary truce.
The warm volcanic sand serves as an incubator for their eggs.
It is autumn's final flourish before the months of darkness begin.
In the seas, monstrous reptile patrol the depths.
These are the tiny lures of fungus gnat larvae
and rooting through fern for fallen fruit.
Constant irritation makes it hard to feed,
to scrape out shallow crater, the first stage in making a nest.
The blizzard worsens.
These are the tiny lure of fungus gnat larvae
But robbery is risky.
The southern hemisphere has its own species of dinosaurs.
As winter slacken its grip, meltwater begins to flow with great power.
But the nanuqsaurs bide their time…
amongst the tangle trees of a prehistoric forest.
Most animals flee from the flames.
Some animals have already seize the moment
A couple of hadrosaurs wander by.
Individuals could be quickly isolate.
If the young can't keep up, their mothers abandon them.
Yet that's where these enormous crest hadrosaurs are heading
So, this is where they nest.
and one that few dare to challenge.
In the seas, monstrous reptiles patrol the depths.
But he is not the first to be attract by this one.
troodontids gather to prey on animals that are trying to escape the flames.
Of the hundreds of hadrosaur babies born, only one in ten survive their first year.
Spring, at last, has truly arrive.
In this icy world, no opportunity is too small to be ignore.
Caught in the act.
They seek refuge in the forest,
One pachyrhinosaur has lost the battle.
Anything that spread the fire creates more opportunities
But they've forgotten who's in charge.
Surely, one of the most remarkable animals that has ever exist,
Two-ton herbivores with extravagantly armored heads.
and they become dangerously weakened.
The herd follow cautiously.
these lands are, nonetheless, ruled by extreme seasonal change.
Hadrosaurs have surprisingly thin skin,
Battling males barely have time to eat or rest.
and occasionally test for weakness.
dinosaurs ambush, display, and even journey underground.
When eggs are eventually laid,
the polar regions are relatively warm,
Spring, at last, has truly arrived.
and certainly one of the most famous, is a dinosaur.
The long necks of these dinosaurs are particularly elegant
A cave, perhaps.
Sheltering together conserves heat and, therefore, energy.
When the sun rises for the first time in almost three months,
while outside, snow begins to fall.
Spring is short, and summer will soon be over.
it's still just big enough to tackle a pachyrhinosaur.
In the far north of America, this tiny hunter, a dromaeosaur,
The herd must wade through this deep, fast-flowing water.
The little dromaeosaurs must work together,
Planet Earth, 66 million years ago.
An unguarded nest is too much of a temptation.
and form an impenetrable wall of armored heads and muscle.
In the seas, monstrous reptiles patrol the depths.
for the most ingenious arctic hunter of its time.
stripping the last leaves from dormant trees
It's the most intelligent, adaptable, and successful hunter in the Arctic.
This old bull is still a formidable force
They're also one of this world's most heavily armored animals.
They're heading for one of the world's largest volcanic regions.
With food now scarce, it's hard to rebuild strength,
But robbery is risky.
These plants contain more nutrients than the lush grass.
In a crowded colony, there's always another potential victim.
Life is at its harsh
has now been baked tinder-dry.
The nervous herd makes a tactical retreat to open ground.
to scrape out shallow craters, the first stage in making a nest.
Yet that's where these enormous crested hadrosaurs are heading
Surely, one of the most remarkable animals that has ever existed,
but less dominant males still try to push their way up the social hierarchy.
for the most ingenious arctic hunter of its time.
Dinosaurs, however, have managed to colonize these polar regions.
For every growing animal, this is a vulnerable time.