David Attenborough on the importance of our oceans

Over 99 years and an extraordinary career, Sir David Attenborough has witnessed our understanding of the ocean evolve dramatically. As that understanding grows, he feels more than ever that it's vitally important to see it as the lifeblood of our world. Ocean with David Attenborough premieres Saturday, June 7 at 9/8c on National Geographic. Streaming next day on @disneyplus and @hulu