Blue Planet II - One Ocean: The videos

First shown on BBC One on October 29th, 2017, One Ocean was the first episode of the OU/BBC co-production Blue Planet II. Here's a taste of the episode, and some of the work that went into producing it...

The tusk fish and the tool

How do you get into a delicious clam when you have no hands? The tusk fish has a way...

And here's cameraperson Alex Vail talking about capturing that behaviour:

And y'know, they call them killer whales

Orcas use their skills to harvest herring:

Turning on the terns

Fish-eating birds isn't news. But the giant trevallies making a lunch from terns? That's more unexpected:

Eye on the walrus

How do you capture footage of walrus going about their daily business?