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And a micro meter is one millionth of a meter
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Attenborough and the Sea Dragon

And a micro meter isone millionth of a meter, and you see herethese little granules and...

And a micro meter is
one millionth of a meter, and you see here
these little granules and these are preserved
melanosomes

Full Transcript

00:00:01.000 --> 00:00:03.048
And a micro meter is one millionth of a meter,
00:00:03.048 --> 00:00:05.096
and you see here these little granules
00:00:05.096 --> 00:00:09.016
and these are preserved melanosomes.
Duration
9 seconds
Views
34
Timestamp in Movie
00:38:12
Uploaded
Jun 28, 2025
Genres
documentary
Production
BBC

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Movie Summary

Sir David Attenborough investigates the discovery of a 200 million year old Ichthyosaur on the Jurassic Coast in southern England.
Now, melanosomes contain the pigment - Attenborough and the Sea Dragon 00:12
Now, melanosomes contain the pigment
There's a large abundance of these melanosomes, - Attenborough and the Sea Dragon 00:11
There's a large abundance of these melanosomes,
So it most likely had a much darker back than it did a belly - Attenborough and the Sea Dragon 00:11
So it most likely had a much darker back than it did a belly
ATTENBOROUGH: You can see countershading - Attenborough and the Sea Dragon 00:07
ATTENBOROUGH: You can see countershading
Both predators and prey are colored in this way. - Attenborough and the Sea Dragon 00:04
Both predators and prey are colored in this way.
It makes it more difficult to see both from above and below. - Attenborough and the Sea Dragon 00:05
It makes it more difficult to see both from above and below.
SMITHWICK: So this is the first time that we've actually seen evidence - Attenborough and the Sea Dragon 00:07
SMITHWICK: So this is the first time that we've actuall...
ATTENBOROUGH: So that really is a step forward - Attenborough and the Sea Dragon 00:05
ATTENBOROUGH: So that really is a step forward
SMITHWICK: It is, and it can tell us a huge amount - Attenborough and the Sea Dragon 00:05
SMITHWICK: It is, and it can tell us a huge amount
Today, counter-shaded animals tend to live in open water - Attenborough and the Sea Dragon 00:07
Today, counter-shaded animals tend to live in open water
Ichthyosaurs also lived in the open seas, - Attenborough and the Sea Dragon 00:08
Ichthyosaurs also lived in the open seas,
The latest scientific research suggests that counter-shading - Attenborough and the Sea Dragon 00:12
The latest scientific research suggests that counter-shading
As an air-breathing creature, - Attenborough and the Sea Dragon 00:12
As an air-breathing creature,
There are, of course many marine reptiles - Attenborough and the Sea Dragon 00:07
There are, of course many marine reptiles
The biggest of them is the leatherback, - Attenborough and the Sea Dragon 00:10
The biggest of them is the leatherback,
Today they come ashore to nest in many places, - Attenborough and the Sea Dragon 00:08
Today they come ashore to nest in many places,
This huge leatherback turtle - Attenborough and the Sea Dragon 00:07
This huge leatherback turtle
She's hauled her way up from the sea, and dug a hole, - Attenborough and the Sea Dragon 00:11
She's hauled her way up from the sea, and dug a hole,
She'll then fill in the hole and then work her way down, - Attenborough and the Sea Dragon 00:09
She'll then fill in the hole and then work her way down...
It's clearly a very laborious process. - Attenborough and the Sea Dragon 00:05
It's clearly a very laborious process.