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The most extensive of these marine
grasslands can stretch for over 3,000 square miles
grasslands can stretch for over 3,000 square miles
Full Transcript
00:00:01.000 --> 00:00:04.198
The most extensive of these marine
grasslands
00:00:04.076 --> 00:00:08.031
can stretch for over 3,000 square miles.
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Movie Summary
David Attenborough returns to the world's oceans in this sequel to the acclaimed documentary filming rare and unusual creatures of the deep, as well as documenting the problems our oceans face.