Documentary Walking With Dinosaurs S1 Ep1 New Blood
#AncientEarth #Documentary #Dinosaurs #Prehistoric #Evolutionary
#AncientEarth #Documentary #Dinosaurs #Prehistoric #Evolutionary
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00:00Transcription by CastingWords
00:30Imagine you could travel back in time, to a time long before man.
00:41Back across 65 million years.
00:45As you travel, you would see huge changes in the vegetation and the climate.
00:49Even the surface of the earth itself would move as mountain rangers are pushed up by colliding continents.
01:00Now you've reached a remarkable period in earth's history, known as the Cretaceous.
01:12It is a very different world.
01:15The Himalayas do not yet exist, and the Atlantic is only half as wide.
01:21There is no grass, only conifer forests and fern prairies.
01:24This is a world ruled by dinosaurs.
01:37Giant reptiles like Tyrannosaurus, a five-ton predator, stalk the landscape.
01:43In walking with dinosaurs, we will show you how these magnificent creatures live.
01:58How they eat, fight, and reproduce.
02:01And you will witness how the forces of nature conspire to drive these animals to extinction.
02:10But this series will also take you back much further.
02:27Back to the Jurassic period, a time when life on earth was at its most spectacular.
02:33The creatures here bathe in a warm, tropical climate.
02:43There are no ice caps at the poles.
02:46Flowers and broad-leaved trees are yet to evolve.
02:49In the air and on the land, the world is dominated by reptiles.
02:54And by far the most common are the dinosaurs.
02:57But they are not the only giants.
03:11Huge pterosaurs rule the skies.
03:14And below them, massive marine reptiles harvest the rich oceans.
03:18However, first, this series will go back even further to discover where dinosaurs came from.
03:37This is our own earth during the Triassic period.
03:41Here, there are no separate continents, just one giant landmass called Pangaea.
03:46It is a harsh place, dominated by deserts.
03:59The Triassic has already seen many different varieties of ancient reptiles come and go.
04:05But now, out of this dry wilderness, has appeared something revolutionary.
04:09A family of reptiles destined to shape the course of life on earth for the next 160 million years.
04:20These are the first dinosaurs.
04:23And this is where our story begins.
04:26First light across the western hills of earth's only continent, Pangaea.
04:46This world has been ruled by one group of giant reptiles for over 50 million years.
04:54But these ancient creatures have had their day.
04:57All over these lush fern prairies, a grim evolutionary battle has broken out among the newer types of reptile for supremacy of this strange world.
05:10On these Triassic proving grounds, dinosaurs are still comparatively rare, but they are beginning to show the first signs of their future success.
05:23It is the end of the wet season, and the local river is full, but it will not remain this lush.
05:39And ahead lies nine months with no rain.
05:46One type of reptile has evolved to thrive in drought.
05:49Dinosaurs like this Coelophysis can survive on very little water.
05:54She is also light-boned, fast, and she is beautifully adapted for killing.
06:19Dinosaurs first appeared around 10 million years before, as small predators.
06:24But what makes them unique is special hips and ankles that allow them to stand perfectly balanced on two legs.
06:32With lightning-fast reactions, they are built to survive.
06:36A growing chorus of calls signals the arrival of a huge herd of placerias.
06:50They are making their way down from the fern scrubland for their morning drink.
06:54These impressive one-tonne beasts are not related to dinosaurs.
07:08They are a much more ancient type of reptile.
07:11Once there were many different varieties of these powerful creatures swaggering across the landscape.
07:16But now the placerias are the only ones of their kind that remain.
07:21They are an endangered species.
07:24Despite their fearsome appearance, they are actually gentle herbivores.
07:29Their tusks are used for digging up roots.
07:35But on two angry males, these tusks can make lethal weapons.
07:40For the swift coelophysis, placerias are prey.
07:55This young female targets the old and weak in the slow-moving herd.
08:10One day, the descendants of dinosaurs like Coelophysis will take over this world.
08:24But it is their speed and agility that gives them the edge in the mid-Triassic.
08:28Further downriver is one of the Triassic's most bizarre animals.
08:41The Cynodont is a missing link between reptiles and mammals.
08:46As he runs, his backbone moves from side to side like a reptile's.
08:51But he has hair and lives down a burrow like a mammal.
08:58Deep inside, his mate sleeps on a bed of lichen.
09:07The bond between Cynodonts is extraordinarily strong.
09:11They pair for life.
09:13Like all land reptiles, they lay eggs.
09:16But after hatching, the young are utterly dependent on their parents
09:19and spend their first three months feeding from special milk glands on the mother's stomach.
09:25This form of reproduction has evolved to protect their young from the daylight predators outside.
09:35By day, even the father sticks close to the safety of the burrow
09:39and carries out domestic chores.
09:42He only hunts at night.
09:44In the not-too-distant future, small furry mammals will evolve from reptiles like these.
10:00In the heat of the dry season, the Placirias herd spreads out over the scrubland to feed.
10:23Suddenly, the warm breeze changes and there is the scent of fear in the air.
10:28The wind is the wind is the wind.
10:58Postasuchus, a merciless ambush predator, the largest carnivore on earth.
11:13The terrified Placereus flee, but they are desperately slow, and one of them now carries a mortal wound.
11:20Their tormentor is a distant cousin of the dinosaurs, evolved from the same reptilian ancestors,
11:26but unlike them, she is too front heavy to run on two legs.
11:30Yet the Postasuchus is easily fast enough to keep pace with the herd.
11:38Eventually a combination of shock and blood loss defeats the wounded Placereus.
11:55The carnivore's bite has done its job.
11:59The Placereus is now too weak to fight, and the Postasuchus has an easy meal.
12:07As the weeks of the dry season pass, only the vegetation around the river remains lush, and this attracts exotic hunters from far and wide.
12:25Like this Patinosaurus, she is a flying reptile who has evolved extra long fingers to support her delicate wing membranes.
12:39The river's resident flying predators are dragonflies.
12:43Insects like these evolved long before the first reptiles, and over 100 million years ago some took to the air and became aerial killers.
12:57But in the Triassic era, these hunters have become the hunted.
13:17A jaw full of needle-sharp teeth makes short work of the insect.
13:27The Placereus have evolved strong, lightweight bones for flight.
13:31And like the dinosaurs, they are fast and deadly.
13:35Reptiles are becoming the new masters of the air.
13:41In temperatures of over 40 degrees centigrade, the Placereus need lots of water, and these ancient reptiles have to spend more time at the river.
13:53But the herd is nervous.
13:55They know this is a good place for an ambush.
13:57They know this is a good place for an ambush.
14:05The Postasuchus is not hunting.
14:09She has recently eaten her fill and also needs to come down to the river to drink.
14:19Six metres long, heavily built, with an armoured back, she needs a huge amount of food, and therefore has to defend a very large territory.
14:33The only creature on the planet she fears is another Postasuchus.
14:49It is now the middle of the dry season, and months since any rain.
14:59Across the scrubland, smaller rivers are drying out.
15:03In one, a Patinosaurus risks a cooling bath.
15:12He constantly checks for danger.
15:19The Cynodonts lie secure and cool through the hottest part of the day.
15:31But no animal here is truly safe.
15:39The female Coelophysis has picked up the scent of their bedding.
15:43Soon she is exploring the entrance, and she is not alone.
15:49Clearly, these dinosaurs have not met Cynodonts before.
16:14Nearby, the Placereas search for moist roots beneath the drying ferns.
16:19The Postasuchus once again needs food.
16:21But her last attack left her with a tusk wound on her thigh, a severe handicap for such a heavily built creature.
16:35The Placereas herd spots her before she can set an ambush, and they mount an aggressive defense.
16:50She will get no food here, and in such a competitive world, her wound may yet prove fatal.
17:00Evening, and in the burrow, the Cynodonts prepare for a night of hunting.
17:08The young are more developed now, and starting to move about the nest.
17:14But they are still vulnerable, and it will be another two months before they can do without their parents' protection.
17:20The adult male checks the coast is clear.
17:30An inquisitive youngster follows him to the end of the burrow.
17:46Too late, the male responds to his squealing pup.
18:08Once again, he drives the dinosaurs away.
18:22But this time, they don't go far.
18:25Nearby, a thirsty male Postasuchus has invaded the wounded female's territory.
18:34But this withered Triassic landscape cannot support two giant predators in one dry valley.
18:40The female is too weak to fight.
19:05After dominating her territory for a decade, she is driven from her home.
19:15The male uses precious water to mark his new territory.
19:20Meanwhile, the Coelophysis are starting to dig the Cynodonts out.
19:37Their situation is becoming desperate, as the dinosaurs will soon expose the nest.
19:43As the sun sets, the pair have only one choice.
20:00It means shattering their unique parental bond.
20:04They eat their own young.
20:06This denies the dinosaurs their food and gives the Cynodonts the chance of escape.
20:12Under the moonlight, they seize the moment and abandon the hole.
20:25In the morning, the Coelophysis are back.
20:40They can still smell the Cynodonts.
20:43And it will take them some time to realize their work is in vain.
20:47The dry season continues.
20:53After her wasted effort at the Cynodont hole, the female Coelophysis has found something in the parched riverbed.
21:13It is a lung fish, and the dinosaur's unique serrated teeth will make short work of its protective cocoon.
21:20But she is not left alone to eat it for long.
21:24Coelophysis numbers are on the increase, and this leads to confrontations.
21:39The pressure of numbers also brings other changes in behaviour.
21:58Under the merciless sun, a flock of Coelophysis has united for a kill.
22:13The wounded female Postasuchus has lost the use of her back legs.
22:17However, her mighty jaws could still tear a dinosaur apart.
22:22The great carnivore's strength fails.
22:47All the Postasuchus' heavy armour and muscle are no more than food for the agile little dinosaurs.
22:57Their long snouts and nibbling front teeth can reach under her thick scales.
23:02They eat her from the inside out.
23:31The rains are late, and now the real test for survival begins.
23:36As vast areas turn into red desert, the Placereas are driven to migrate in search of water.
23:44But in this extreme drought, dinosaurs have a crucial advantage over other reptiles.
24:01When they excrete, they waste very little water.
24:05Nowhere is this advantage more obvious than down by the shrunken river.
24:13Coelophysis are gathering in huge numbers.
24:16And in years of hardship like this, it is the dinosaurs that win through.
24:20There is little room for any other reptiles here.
24:24And without sufficient prey, the dinosaurs swiftly turn on each other.
24:32Cannibalism is common.
24:38The Triassic is pushing life to its limits.
24:52Night reveals dinosaurs are not the only animals that have managed to cling on.
24:57The Cynodonts have survived their brush with death and dug another burrow hidden in some dried ferns.
25:05Once again, the male is hunting in the darkness.
25:08He has caught the only common prey.
25:21A baby Coelophysis.
25:38After nine months of drought, at last the rains have arrived.
26:08Soon, the thirsty scrublands are soaking.
26:23Inside her burrow, the female Cynodont has laid a fresh clutch of eggs.
26:42One day in the distant future, this strategy of investing in their young will pay off for their mammalian descendants.
26:49But as mammals evolve over the next 160 million years, they will only survive as a few small species,
26:56clinging on at the edge of a world dominated by dinosaurs.
27:04Outside, that future is already arriving.
27:11The female Coelophysis has survived the drought, along with many of her kind.
27:19But they have also been joined by another type of dinosaur.
27:38A huge herd of Platyosaurus has been drawn to the swollen river.
27:42It is hard to believe that these four-legged beasts are related to Coelophysis.
27:47But these are plant-eating dinosaurs.
27:53Their size is the key to their success.
27:56And at four tons, they are simply too big to be threatened.
28:00This is the shape of things to come.
28:07The age of the dinosaurs has dawned.
28:12The End
28:1510 million years later,
28:19a massive extinction of стала growing a tua.
28:21The aus으� Law
28:24Uh, but we dec歡迎 verloren a little bit more of a constantС�ota.
28:35Episode 2
28:36Safety
28:37Twenty million years later, a massive extinction wiped out thousands of species of reptile,
28:45but the dinosaurs went from strength to strength.
28:49Carnivores grew to enormous sizes, but their prey got even bigger.
28:54In the next program, we meet the giants of the Jurassic.
29:07The Control of the World
29:13The Cultures
29:20The Consciousness
29:24The Consciousness
29:26The Consciousness
29:26The Consciousness
29:31The Consciousness
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