BBC.Planet.Dinosaur.Files.PDTV.x264.AAC.MVGroup.org Subtitles

00:00:06,120 --> 00:00:11,This is one of the most awesome
dinosaurs ever discovered.

00:00:11,480 --> 00:00:13,Meet Spinosaurus,

00:00:13,920 --> 00:00:18,a truly amazing predator that
lived 95 million years ago.

00:00:22,840 --> 00:00:26,In the dinosaur world,
this is the Terminator,

00:00:26,880 --> 00:00:32,at a stunning 17 metres in length
and 12 tonnes in weight.

00:00:34,000 --> 00:00:36,Spinosaurus is one of
the largest predators

00:00:36,440 --> 00:00:39,to have ever walked the planet.

00:00:40,800 --> 00:00:42,It lived in North Africa.

00:00:43,560 --> 00:00:46,Here, it's roaming a swamp,

00:00:46,040 --> 00:00:49,but this hunter's favourite prey
lived elsewhere.

00:00:53,480 --> 00:00:54,HISS

00:00:54,480 --> 00:00:58,Spinosaurus's meal of choice
was fish, not meat.

00:01:03,280 --> 00:01:07,This is a dinosaur that loved
to hunt in water.

00:01:07,800 --> 00:01:12,Standing in the river shallows,
Spinosaurus plays a waiting game.

00:01:14,520 --> 00:01:16,It's on the lookout
for one of these.

00:01:16,920 --> 00:01:22,Onchopristis, a giant
eight-metre long swordfish.

00:01:22,280 --> 00:01:26,There's enough fresh sushi there
for a whole Japanese restaurant.

00:01:30,480 --> 00:01:34,You can find this kind of hunting
going on in the wild today.

00:01:34,400 --> 00:01:37,This grizzly bear
loves a bit of raw fish too.

00:01:38,680 --> 00:01:41,He and his mates know that thousands
of juicy salmon are swimming

00:01:41,760 --> 00:01:45,up river, and they're waiting
for a meal to come their way.

00:01:47,160 --> 00:01:53,And their super-quick reactions mean
they can catch this fish in mid-air.

00:01:55,360 --> 00:01:58,But how do we know that Spinosaurus
was as partial to fish

00:01:58,600 --> 00:02:00,as that grizzly bear?

00:02:01,680 --> 00:02:03,By looking at the evidence,
that's how.

00:02:05,040 --> 00:02:09,These are the tooth sockets
in a Spinosaurus's jaw.

00:02:09,000 --> 00:02:12,It was found
in 2005 in North Africa.

00:02:12,800 --> 00:02:15,Stuck in one of the sockets
is a tiny piece of backbone

00:02:15,600 --> 00:02:18,from another creature.

00:02:19,560 --> 00:02:23,This spino clearly didn't brush
his teeth before he went to bed!

00:02:23,400 --> 00:02:29,That bone fragment was from a
swordfish, possibly Onchopristis.

00:02:29,120 --> 00:02:33,These juicy fish were one
of Spinosaurus's favourite foods.

00:02:33,720 --> 00:02:36,And, a bit like a bored angler,

00:02:36,520 --> 00:02:40,Spino would spend hours waiting for
these tasty river treats to swim by.

00:02:42,000 --> 00:02:46,Here was a beast that loved poking
its snout into a fast-flowing river.

00:02:48,320 --> 00:02:51,And Spinosaurus's way of catching
fish is really clever.

00:02:51,960 --> 00:02:54,Its secret lies in that snout.

00:02:54,160 --> 00:02:58,It has lots of small holes in it
that are very similar

00:02:58,320 --> 00:03:00,to those of a crocodile.

00:03:05,840 --> 00:03:09,In a crocodile, these snout holes
contain special sensors.

00:03:09,480 --> 00:03:12,These help the croc to feel
small changes of pressure

00:03:12,280 --> 00:03:16,caused by other creatures
disturbing the water nearby.

00:03:16,960 --> 00:03:21,That signal is one of the ways
it zeroes in on prey.

00:03:25,240 --> 00:03:29,And dinosaur experts believe
that the Spinosaurus had sensors

00:03:29,040 --> 00:03:33,like the crocodile,
an amazing ability that meant

00:03:33,760 --> 00:03:35,it could strike at these
onchopristis

00:03:35,960 --> 00:03:38,without even seeing them.

00:03:56,680 --> 00:04:00,Take a look at this
amazing creature.

00:04:00,320 --> 00:04:04,A flying monster,
its name is Hatzegopteryx.

00:04:04,480 --> 00:04:09,This is a kind of prehistoric
flying reptile called a pterosaur

00:04:09,640 --> 00:04:14,and it's one of the largest flying
creatures ever known.

00:04:16,640 --> 00:04:18,This mind-blowingly massive beast

00:04:18,960 --> 00:04:22,patrolled the skies
65 million years ago.

00:04:23,480 --> 00:04:27,At that time, Europe was made up
of lots of islands, one of which

00:04:27,680 --> 00:04:32,was called Hatzeg, which is how
this monster gets its name.

00:04:32,480 --> 00:04:34,And it really is a monster.

00:04:36,760 --> 00:04:40,Hatzegopteryx was over
five metres tall

00:04:40,480 --> 00:04:43,and had an enormous
ten metre wide wingspan.

00:04:46,320 --> 00:04:51,That's as big as this modern
jet fighter.

00:04:51,280 --> 00:04:55,Hatzegopteryx was an
incredible flying machine.

00:04:55,000 --> 00:04:57,But it preferred to
hunt on the ground.

00:05:02,720 --> 00:05:08,It could gobble up these much
smaller herbivores with ease.

00:05:08,200 --> 00:05:13,Usually, long-necked sauropods,
like these magyarosaurs,

00:05:13,000 --> 00:05:17,were the biggest beasts
in the dinosaur world.

00:05:17,000 --> 00:05:20,Here, though,
they're dwarfed by Hatzegopteryx.

00:05:23,480 --> 00:05:28,How do we know that a flying reptile
could actually get this big?

00:05:28,560 --> 00:05:31,By taking a look at the evidence,
that's how.

00:05:36,680 --> 00:05:39,These are the fossilised
footprints of a pterosaur,

00:05:39,720 --> 00:05:41,very like Hatzegopteryx.

00:05:42,680 --> 00:05:48,Discovered in 2002, they measure
a massive 35 centimetres across,

00:05:48,400 --> 00:05:52,proving that these
creatures could be huge.

00:05:53,800 --> 00:05:57,Imagine, if the hatzegopteryx
were around today,

00:05:57,840 --> 00:06:01,it would be three times bigger than
the world's largest flying bird,

00:06:01,560 --> 00:06:04,the wandering albatross.

00:06:04,320 --> 00:06:09,And when it landed on the ground,
it would be as tall as a giraffe.

00:06:15,520 --> 00:06:18,Take a look at this
condor from South America.

00:06:18,000 --> 00:06:21,This bird glides a bit like Hatze.

00:06:21,040 --> 00:06:25,A condor's wings take advantage of
warm air currents called thermals.

00:06:25,680 --> 00:06:29,They help it stay in the air
for hours on end.

00:06:29,160 --> 00:06:32,Dinosaur experts believe pterosaurs
like Hatzegopteryx

00:06:32,960 --> 00:06:34,could do the same.

00:06:54,080 --> 00:06:58,If you thought Tyrannosaurus rex
was an impressive dinosaur,

00:06:58,960 --> 00:07:02,take a look at this
prehistoric predator.

00:07:06,600 --> 00:07:08,This is Carcharodontosaurus.

00:07:08,480 --> 00:07:10,ROAR

00:07:10,120 --> 00:07:14,Its name means
"shark-toothed lizard".

00:07:14,640 --> 00:07:17,This monster grew up
to 13 metres long.

00:07:19,360 --> 00:07:22,An adult weighed a hefty
seven tonnes.

00:07:22,960 --> 00:07:28,It ruled the roost in North Africa
95 million years ago.

00:07:28,000 --> 00:07:30,ROAR

00:07:30,200 --> 00:07:32,Carcharodontosaurus
was a carnivore,

00:07:32,640 --> 00:07:35,and a whole ton heavier than T-Rex.

00:07:37,360 --> 00:07:42,How much meat do you think
a killer of this size ate each day?

00:07:43,720 --> 00:07:48,The amazing answer is that a
full-grown carcharodontosaurus

00:07:48,600 --> 00:07:53,needed to eat a whopping kilograms of meat every day

00:07:53,560 --> 00:07:55,just to survive.

00:07:55,160 --> 00:07:59,That's like having
480 hamburgers every day.

00:08:00,840 --> 00:08:03,Now, the carcharodontosaurus
liked to hunt

00:08:03,840 --> 00:08:06,by creeping up slowly on its prey.

00:08:07,920 --> 00:08:10,But amazingly,
for such a large beast,

00:08:10,480 --> 00:08:13,we've recently discovered that
it could really move it too.

00:08:15,360 --> 00:08:16,Watch this.

00:08:21,400 --> 00:08:25,Over short distances, this hunter's
explosively powerful legs

00:08:25,160 --> 00:08:28,could get it running
up to 20 miles an hour.

00:08:28,200 --> 00:08:32,That meant it could catch lighter
prey like this ouranosaurus.

00:08:37,560 --> 00:08:41,So, where would you have found
one of these ruthless killers?

00:08:41,560 --> 00:08:47,Most of the 95 million-year-old
carcharodontosaurus bones

00:08:47,200 --> 00:08:51,have been found in various
sites across North Africa.

00:08:53,160 --> 00:08:59,Life for these big killers was
a constant battle. For food...

00:08:59,040 --> 00:09:01,For territory...

00:09:01,240 --> 00:09:04,For dominance over
other carcharodontosaurs.

00:09:11,040 --> 00:09:12,ROAR

00:09:12,400 --> 00:09:16,But how can we tell this kind of
head-to-head battle went on?

00:09:18,240 --> 00:09:21,By closely looking at
the evidence, that's how.

00:09:23,080 --> 00:09:25,This is a recently
discovered lower jaw bone.

00:09:27,240 --> 00:09:29,It came from a meat-eating dinosaur.

00:09:29,960 --> 00:09:35,It's big, nearly half a metre long,
and the exciting...