Planet Dinosaur_ Ultimate Killers (2012).720p-EbP.English Subtitles

At 00:00:12,600, Character said: We are living through
a dinosaur revolution.

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At 00:00:18,041, Character said: We have pushed the boundaries of
our knowledge further than ever before.

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At 00:00:28,470, Character said: We have a completely
new understanding

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At 00:00:31,131, Character said: of the greatest killers
ever to walk the Earth.

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At 00:01:05,464, Character said: One killer,

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At 00:01:06,965, Character said: first discovered in Egypt,

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At 00:01:09,271, Character said: has become the icon
of these new predators.

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At 00:01:15,876, Character said: A giant dinosaur

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At 00:01:17,788, Character said: with two-metre-long
spines rising over its back.

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At 00:01:21,515, Character said: It was unlike
anything seen before.

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At 00:01:26,231, Character said: It was only in 2005, when
a complete upper jaw was found,

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At 00:01:30,791, Character said: that we could accurately reconstruct
this bizarre creature.

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At 00:01:35,719, Character said: With a skull almost
two metres long,

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At 00:01:38,571, Character said: this dinosaur was a colossal
17 metres from nose to tail.

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At 00:01:44,449, Character said: Four metres longer than T Rex.

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At 00:01:51,864, Character said: The reign of the dinosaurs

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At 00:01:53,412, Character said: began almost
250 million years ago.

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At 00:01:58,601, Character said: But this killer didn't appear until
a time known as the Mid-Cretaceous.

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At 00:02:04,419, Character said: 95 million years ago,
its home in North Africa

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At 00:02:09,361, Character said: was a desert surrounding a vast
system of rivers and swamps.

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At 00:02:18,320, Character said: The swamps are refuges
for many large dinosaurs,

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At 00:02:22,687, Character said: like the duck-billed Ouranosaurus.

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At 00:02:40,291, Character said: They're also the hunting
grounds for a killer.

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At 00:04:27,770, Character said: Spinosaurus.

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At 00:04:33,296, Character said: The biggest killer
ever to walk the Earth.

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At 00:04:37,513, Character said: An 11-tonne colossus.

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At 00:05:02,607, Character said: However, for the time being,
these Ouranosaurs

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At 00:05:06,429, Character said: are off this killer's menu.

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At 00:05:16,786, Character said: Spinosaurus is part of a relatively
newly-discovered family of dinosaurs.

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At 00:05:22,846, Character said: They've been found in
South America with Irritator,

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At 00:05:26,378, Character said: in Europe, there is Baryonyx

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At 00:05:28,617, Character said: and Asia, Siamosaurus.

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At 00:05:32,060, Character said: But the last and biggest of all
came from North Africa.

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At 00:05:36,068, Character said: Spinosaurus itself.

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At 00:05:41,984, Character said: And studies of their bones and teeth
revealed something amazing.

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At 00:05:52,166, Character said: Spinosaurus is a predator.

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At 00:05:57,962, Character said: But one that hunts in water.

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At 00:06:21,091, Character said: Spinosaurus is unique.

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At 00:06:23,783, Character said: With long, narrow jaws and
nostrils set high on its head.

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At 00:06:28,271, Character said: Its teeth were straight and conical.

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At 00:06:31,047, Character said: And had a curious pattern
of holes in its snout.

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At 00:06:34,764, Character said: Which give us
a clue to how it hunted.

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At 00:06:42,477, Character said: These are Onchopristis.

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At 00:06:45,635, Character said: Eight-metre-long giant sawfish.

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At 00:07:12,755, Character said: In 2008, a Spinosaurus' skull
was put through a CT scanner.

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At 00:07:19,761, Character said: It revealed that the holes
and sinuses in the snout

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At 00:07:22,728, Character said: looked just like
those of crocodiles.

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At 00:07:25,791, Character said: It's thought these contained
pressure sensors.

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At 00:07:30,523, Character said: Sensors that, like a crocodile,

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At 00:07:32,716, Character said: can detect the movement of prey.

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At 00:07:48,303, Character said: It can strike without
even seeing its victim.

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At 00:08:35,387, Character said: Anywhere else this eight-metre
Rugops might be the top carnivore.

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At 00:08:40,156, Character said: But here, it is dwarfed
by Spinosaurus.

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At 00:08:47,111, Character said: A predator that adapted to exploit
an environment so successfully,

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At 00:08:52,302, Character said: it evolved into a 17-metre giant.

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At 00:09:11,449, Character said: Spinosaurus is the biggest
dinosaur predator ever discovered.

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At 00:09:16,420, Character said: But it wasn't
the first giant killer.

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At 00:09:19,659, Character said: The first giant killer dinosaurs
appeared much earlier.

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At 00:09:23,769, Character said: They lived in the Jurassic period,
150 million years ago.

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At 00:09:32,374, Character said: One of the most iconic
is Allosaurus,

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At 00:09:35,397, Character said: from the Morrison Formation
in North America.

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At 00:09:40,239, Character said: Yet it's only recently that
we've been able to work out,

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At 00:09:43,361, Character said: how these predators hunted.

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At 00:09:57,331, Character said: Allosaurus is the most common
killer in these lands.

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At 00:10:06,290, Character said: Nine metres long, with a battery
of saw blade-like teeth

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At 00:10:10,719, Character said: Allosaurus is a formidable hunter.

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At 00:10:31,817, Character said: A lone Camptosaurus
should be an easy kill.

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At 00:10:48,917, Character said: Allosaurus teeth
were serrated front and back,

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At 00:10:52,601, Character said: perfectly evolved
for tearing through flesh.

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At 00:10:58,277, Character said: However, recent research
has indicated

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At 00:11:00,764, Character said: that Allosaurus' b***e
was surprisingly weak.

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At 00:11:05,160, Character said: Calculations suggested its b***e
was less powerful than a lion's.

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At 00:11:19,396, Character said: So, just how did this Jurassic
monster hunt and kill?

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At 00:11:55,442, Character said: Camptosaurus relies
on its keen senses

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At 00:11:58,530, Character said: to avoid predators.

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At 00:12:08,646, Character said: Allosaurus on the other hand, is
a fast and powerful ambush hunter.

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At 00:13:41,069, Character said: Despite the apparent
weakness of its b***e,

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At 00:13:43,625, Character said: Allosaurus did in fact have
a deadly killing method.

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At 00:13:50,234, Character said: Its skull could withstand a force

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At 00:13:52,346, Character said: more than 15 times
as great as its b***e.

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At 00:14:00,805, Character said: This meant that Allosaurus
used its head like an axe.

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At 00:14:04,978, Character said: Its strong neck muscles driving
its top jaw into its prey.

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At 00:14:10,702, Character said: With every impact,
the serrated teeth

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At 00:14:13,213, Character said: would tear through
its prey's flesh.

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At 00:14:20,732, Character said: The victim dying, through a
combination of shock and blood loss.

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At 00:14:44,433, Character said: Saurophaganax.

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At 00:14:49,564, Character said: At 12 metres, it is the biggest
carnivore in the region.

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At 00:15:23,834, Character said: One of the advantages
of being so big

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At 00:15:26,485, Character said: is that stealing another's kill
is that much easier.

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At 00:15:38,183, Character said: With rise of giant predators

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At 00:15:40,876, Character said: and their spread throughout
the Jurassic world

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At 00:15:43,950, Character said: smaller dinosaurs needed
new strategies

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At 00:15:47,202, Character said: if they were to survive.

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At 00:15:51,170, Character said: In recent years, China
has been the focus

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At 00:15:53,877, Character said: of some remarkable
fossil discoveries.

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At 00:15:59,142, Character said: One extraordinary fossil hints

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At 00:16:01,511, Character said: how some may have avoided
these killer dinosaurs.

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At 00:16:07,880, Character said: It lived in the Jurassic
forest of China

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At 00:16:10,602, Character said: a 154 million years ago.

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At 00:16:19,995, Character said: Hiding in these lush forests
is Epidexipteryx.

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At 00:16:43,143, Character said: This forest is home
to many predators

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At 00:16:45,674, Character said: and being small
makes it vulnerable.

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At 00:17:23,025, Character said: This is Sinraptor.

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At 00:17:27,480, Character said: A small dinosaur
like Epidexipteryx

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At 00:17:30,734, Character said: would be of no interest
to a seven-metre adult.

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At 00:17:35,470, Character said: But this is a juvenile.

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At 00:18:30,928, Character said: Being small does have
its advantages.

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At 00:18:36,537, Character said: Everything we know
about Epidexipteryx

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At 00:18:39,170, Character said: comes from
an incredible fossil,

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At 00:18:41,604, Character said: first revealed in 2008.

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At 00:18:46,236, Character said: It showed an animal with a small
skull and large eye sockets,

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At 00:18:50,995, Character said: and unusually long teeth.

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At 00:18:57,298, Character said: With toes suited
to gripping branches

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At 00:19:00,098, Character said: and very long arms and hands,

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At 00:19:02,929, Character said: it suggests that this was a dinosaur
well suited to living in the trees.

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At 00:19:11,979, Character said: The extraordinary,
elongated third finger

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At 00:19:15,978, Character said: is another distinctive
feature of the group.

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At 00:19:21,213, Character said: With this and its
projecting front teeth,

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At 00:19:24,402, Character said: Epidexipteryx has the perfect
tools to hunt for insects.

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At 00:20:04,666, Character said: Prey like this, which is difficult
to catch, is quite a prize.

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At 00:20:17,012, Character said: A prize that can attract
unwanted attention.

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At 00:20:21,071, Character said: Here it's another, larger,
Epidexipteryx.

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At 00:20:46,162, Character said: There is...