Dinosaurs.The.Final.Day.with.David.Attenborough.2022.1080p.WEBRip.x264-RARBG Subtitles

At 00:00:07,800, Character said: 66 million years ago,

2
At 00:00:10,880, Character said: Planet Earth was very different
from today.

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At 00:00:19,880, Character said: Back then, one of our closest
ancestors might have looked

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At 00:00:24,040, Character said: something like
this little furry creature.

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At 00:00:35,760, Character said: RUMBLING GROWL

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At 00:00:39,600, Character said: The rulers of the land
were giant reptiles.

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At 00:01:05,880, Character said: Dinosaurs.

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At 00:01:07,720, Character said: That's one of the most infamous,

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At 00:01:09,360, Character said: a carnivorous T-rex.

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At 00:01:13,240, Character said: And just behind are
the bison of their time,

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At 00:01:16,200, Character said: a common plant-eater,
Edmontosaurus.

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At 00:01:19,960, Character said: But what happened to them all?

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At 00:01:23,640, Character said: 66 million years ago,

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At 00:01:25,680, Character said: an asteroid hit the Earth,

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At 00:01:28,000, Character said: and scientists think
that it was this collision

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At 00:01:31,200, Character said: that wiped out the dinosaurs.

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At 00:01:34,320, Character said: But no-one has ever found
direct evidence of that.

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At 00:01:37,880, Character said: In fact, no-one has ever found
the fossil of a dinosaur

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At 00:01:42,200, Character said: that died within
a thousand years of the impact.

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At 00:01:48,160, Character said: However, a remarkable dig site
promises to change that.

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At 00:01:55,800, Character said: It's in the Hell Creek formation

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At 00:01:58,600, Character said: in the American Midwest.

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At 00:02:02,520, Character said: These badlands are rich
in prehistoric remains...

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At 00:02:07,840, Character said: ROARS

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At 00:02:07,840, Character said: ..from triceratops...

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At 00:02:13,520, Character said: SQUAWKS

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At 00:02:13,520, Character said: ..to pterosaurs.

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At 00:02:17,760, Character said: And here, one patch of land

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At 00:02:20,160, Character said: about the size of a football pitch

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At 00:02:22,600, Character said: is yielding a collection
of astonishing fossils.

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At 00:02:29,000, Character said: The precise location is
a closely guarded secret,

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At 00:02:32,280, Character said: because this place
may hold evidence...

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At 00:02:37,600, Character said: ..of one of the most dramatic events

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At 00:02:40,120, Character said: in all the four-and-a-half-
billion-year history

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At 00:02:43,200, Character said: of our planet.

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At 00:02:48,640, Character said: Right, let me get down here
between you.

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At 00:02:51,040, Character said: For ten years,
a palaeontologist and his team

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At 00:02:54,640, Character said: have been trying to find out
exactly what happened here.

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At 00:02:57,800, Character said: You're at the edge
of your seat every moment,

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At 00:03:00,280, Character said: trying to dig this stuff up.

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At 00:03:01,880, Character said: It's like trying to defuse
a nuclear weapon

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At 00:03:03,840, Character said: while you're in a rainstorm.

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At 00:03:06,000, Character said: He's named the site Tanis,

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At 00:03:08,360, Character said: and believes it could be
a mass graveyard

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At 00:03:10,800, Character said: of creatures that were killed

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At 00:03:12,320, Character said: in the catastrophic asteroid strike.

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At 00:03:19,960, Character said: A site that could reveal not only
how the last dinosaurs lived,

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At 00:03:25,160, Character said: but how they died.

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At 00:03:28,440, Character said: If the dig team is right,
Tanis could be a place

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At 00:03:32,400, Character said: where the remains
of a long-lost world

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At 00:03:35,560, Character said: are frozen in time.

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At 00:03:39,400, Character said: A place that gives us,
for the first time,

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At 00:03:42,200, Character said: an unprecedented window...

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At 00:03:44,520, Character said: SHRIEKS

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At 00:03:47,520, Character said: ..into the lives
of the very last dinosaurs...

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At 00:03:55,440, Character said: ..and a minute-by-minute
picture of what happened

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At 00:03:58,200, Character said: on the day the asteroid hit.

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At 00:04:20,600, Character said: This landscape is full of fossils

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At 00:04:23,960, Character said: dating from the Late Cretaceous,

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At 00:04:26,320, Character said: the period which began
around 100 million years ago

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At 00:04:29,720, Character said: and ended 66 million years ago,

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At 00:04:33,320, Character said: when the dinosaurs vanished.

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At 00:04:36,800, Character said: Palaeontologist Robert DePalma
wants to find out more.

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At 00:04:41,280, Character said: I think anybody
who's ever liked dinosaurs

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At 00:04:44,680, Character said: in the past, or still does,

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At 00:04:46,600, Character said: has thought at one point
or another,

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At 00:04:48,360, Character said: "Well, what happened to them?

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At 00:04:49,680, Character said: "Why are they not here
any more?"

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At 00:04:52,400, Character said: So many different theories
are out there,

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At 00:04:54,240, Character said: and nobody has a tight answer
to that question.

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At 00:05:02,120, Character said: Judging from fossil evidence,

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At 00:05:04,200, Character said: this is what Hell Creek looked
like in the Late Cretaceous.

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At 00:05:13,880, Character said: There were low-lying,
marshy flood plains,

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At 00:05:16,520, Character said: intercut by river channels
and covered with horsetails,

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At 00:05:20,520, Character said: ferns and trees.

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At 00:05:22,920, Character said: Back then, it was warm
and wet here all year round.

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At 00:05:30,560, Character said: Tanis lies
in the north-eastern corner

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At 00:05:33,720, Character said: of the Hell Creek formation.

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At 00:05:37,800, Character said: Instead of today's
dusty prairies,

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At 00:05:40,360, Character said: there were sandy river banks.

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At 00:05:45,080, Character said: Instead of rocky cliffs,
there were forests.

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At 00:05:50,480, Character said: And instead
of the life we know today...

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At 00:05:52,840, Character said: DEEP RUMBLING CALLS

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At 00:05:55,960, Character said: TRILLING

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At 00:05:58,600, Character said: ..well, Robert is hoping
to find out more

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At 00:06:01,200, Character said: about what that was like.

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At 00:06:04,040, Character said: COOING

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At 00:06:08,600, Character said: A sandbank lying between
a river and a forest

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At 00:06:12,680, Character said: would one day become
what Robert now calls Tanis.

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At 00:06:19,480, Character said: He and his team have been
digging here since 2012.

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At 00:06:24,840, Character said: So somewhere from between there

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At 00:06:26,360, Character said: and down here
is where that came from.

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At 00:06:28,040, Character said: It's come from up above.
Hey, look at this.

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At 00:06:29,800, Character said: What? Look.

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At 00:06:31,200, Character said: Oh, yeah, yeah, yeah. OK.

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At 00:06:32,720, Character said: And what they found is unexpected.

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At 00:06:36,240, Character said: Here we've g***t
this freshwater environment

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At 00:06:39,280, Character said: of the Hell Creek formation,

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At 00:06:40,600, Character said: and these shocking
red, green colours

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At 00:06:44,520, Character said: coming from the shells of ammonites,
a marine organism,

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At 00:06:47,200, Character said: kind of like a coiled snail
in appearance.

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At 00:06:49,800, Character said: So we've g***t this marine organism
that's been thrown up

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At 00:06:52,480, Character said: into this freshwater environment,

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At 00:06:55,000, Character said: and they do not belong here.

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At 00:06:57,960, Character said: How they g***t here is a mystery.

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At 00:07:00,440, Character said: OK...

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At 00:07:01,480, Character said: And there's more.

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At 00:07:03,600, Character said: I'm just going to go ahead and
plane down some of this rock.

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At 00:07:07,120, Character said: Sitting just above the ammonites

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At 00:07:09,320, Character said: is something that
many dinosaur hunters

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At 00:07:12,040, Character said: are desperate to find.

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At 00:07:14,080, Character said: So this orange layer right here
is composed 100%

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At 00:07:19,120, Character said: of impact-related debris
that is enriched in iridium.

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At 00:07:23,280, Character said: Iridium is an element that's rare
in the Earth's crust,

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At 00:07:27,080, Character said: but it's common in asteroids.

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At 00:07:30,200, Character said: The layer it's in is called
the K-Pg boundary.

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At 00:07:35,920, Character said: Dear Momma...

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At 00:07:38,560, Character said: Oh, dear. Really?
Yeah.

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At 00:07:40,640, Character said: It's made up of dust and debris
from a huge asteroid impact.

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At 00:07:47,360, Character said: Look at that. That's amazing.

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At 00:07:48,800, Character said: Yeah, yeah, yeah, yeah, yeah.
That's what we want.

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At 00:07:50,880, Character said: OK. So it's coming
from this area here.

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At 00:07:52,560, Character said: So somewhere within that region is
where these pieces are coming from.

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At 00:07:55,480, Character said: The boundary separates
the age of the dinosaurs

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At 00:07:58,320, Character said: from the age of mammals,

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At 00:08:00,280, Character said: so the rocks here
come from about the time

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At 00:08:03,120, Character said: that the dinosaurs became extinct.

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At 00:08:05,560, Character said: No rattlesnakes.

129
At 00:08:07,520, Character said: What makes the site even
more exciting

130
At 00:08:10,360, Character said: is the rock layer
right beneath the boundary

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At 00:08:13,360, Character said: where Robert found the ammonites.

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At 00:08:15,160, Character said: The rock here
is really not quite rocky,

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At 00:08:17,840, Character said: as you would expect dinosaur bones
and things to be encased -

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At 00:08:20,480, Character said: you expect really, really hard
rocks and jackhammers

135
At 00:08:23,000, Character said: and things like this,
but it's very, very crumbly

136
At 00:08:25,640, Character said: and it just falls apart
in your hands.

137
At 00:08:29,280, Character said: As well as being crumbly
throughout,

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At 00:08:31,760, Character said: this layer of rock is also
around a metre thick,

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At 00:08:35,480, Character said: which, along with
other...