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A BBC Earth film following underwater cameraman Ken O'Sullivan in the North Atlantic, from jellyfish to orcas. Much of it is about how the footage was gathered, which makes it a useful behind-the-scenes companion.
Written by us. YouTube's own title appears below when available.
Species
jellyfish, orca
Review
Checked by an AI assistant using the publisher, description and sample frames, then approved by the site owner. Not yet watched in full by a person. (2026-11-05)