In 2009, marine biologist Sylvia Earle stood on the TED stage and made a wish: to build a global network of “Hope Spots” and protect the ocean before it’s too late. Seventeen years later, she’s back to report on what’s happened since — and the picture is both more urgent and more hopeful than you might expect. From 100,000 fur seals saved from near-extinction to coral reefs rebuilt clam by clam, Earle says we already know exactly what needs to be done; the only thing left is to find the will to do it. (Recorded at TED2026 on April 17, 2026)

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The TED Talks channel features the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less) — plus originals, podcasts and exclusive content. Look for videos on Technology, Entertainment and Design as well as science, business, global issues, the arts and more. Visit for our entire library, transcripts, translations and personalized recommendations.

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Octopus, squid and cuttlefish — collectively known as cephalopods — have strange, massive, distributed brains. What do they do with all that neural power? Dive into the ocean with marine biologist Roger Hanlon, who shares astonishing footage of the camouflaging abilities of cephalopods, which can change their skin color and texture in a flash. Learn how their smart skin, and their ability to deploy it in sophisticated ways, could be evidence of an alternative form of intelligence — and how it could lead to breakthroughs in AI, fabrics, cosmetics and beyond.

Why does searching your symptoms online always leave you more frightened than before? As former chief medical officer of WebMD, physician John Whyte spent years believing more information meant better health — until he saw how too much of it was making people spiral. In a world of health influencers, algorithms and AI tools designed to keep you clicking, he reveals why clarity and context is a better prescription. (Recorded at TEDxNashville on October 19, 2025)

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The TED Talks channel features the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less) — plus originals, podcasts and exclusive content. Look for videos on Technology, Entertainment and Design as well as science, business, global issues, the arts and more. Visit for our entire library, transcripts, translations and personalized recommendations.

Watch more:

TED videos may be used for non-commercial purposes under a Creative Commons License, Attribution–Non Commercial–No Derivatives (or the CC BY – NC – ND 4.0 International) and in accordance with the TED Talks Usage Policy: . For more information on using TED for commercial purposes (e.g. employee learning, in a film or online course), submit a request at

#TED #TEDTalks #Health