The Branches of a Tree

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Jane Goodall on what separates us from the apes | Video on TED.c

Peter Ward on Earth's mass extinctions | Video on TED.com

Jonathan Drori: Every pollen grain has a story | Video on TED.co

Luca Turin on the science of scent | Video on TED.com

Richard Preston on the giant trees | Video on TED.com

Stefano Mancuso: The roots of plant intelligence | Video on TED.com

Cary Fowler: One seed at a time, protecting the future of food |

Jonathan Drori: Why we're storing billions of seeds | Video on T

Paul Stamets on 6 ways mushrooms can save the world | Video on T

Eben Bayer: Are mushrooms the new plastic? | Video on TED.com

Bonnie Bassler on how bacteria "talk" | Video on TED.com

Paul Ewald asks, Can we domesticate germs? | Video on TED.com

Janine Benyus: Biomimicry in action | Video on TED.com

Michael Pawlyn: Using nature's genius in architecture | Video on TED.com

Yann Arthus-Bertrand captures fragile Earth in wide-angle | Vide

Jane Poynter: Life in Biosphere 2 | Video on TED.com

Kamal Meattle on how to grow fresh air | Video on TED.com

Mitchell Joachim: Don't build your home, grow it! | Video on TED

Stewart Brand proclaims 4 environmental 'heresies' | Video on TE

Joshua Klein on the intelligence of crows | Video on TED.com

Keith Bellows on the camel's hump | Video on TED.com

Deborah Gordon digs ants | Video on TED.com

Charles Anderson discovers dragonflies that cross oceans | Video

Robert Full: Learning from the gecko's tail | Video on TED.com

Beverly + Dereck Joubert: Life lessons from big cats | Video on TED.com

Mike deGruy: Hooked by an octopus | Video on TED.com

Dan Barber: How I fell in love with a fish | Video on TED.com

Jeremy Jackson: How we wrecked the ocean | Video on TED.com

John Francis walks the Earth | Video on TED.com

Peter Tyack: The intriguing sound of marine mammals | Video on T

Brian Skerry reveals ocean's glory -- and horror | Video on TED.

David Gallo shows underwater astonishments | Video on TED.com

Richard Pyle dives the reef's Twilight Zone | Video on TED.com

Susan Savage-Rumbaugh on apes | Video on TED.com

Elaine Morgan says we evolved from aquatic apes | Video on TED.c

Robert Sapolsky: The uniqueness of humans | Video on TED.com

Wade Davis on the worldwide web of belief and ritual | Video on

Murray Gell-Mann on the ancestor of language | Video on TED.com

Phil Borges on endangered cultures | Video on TED.com

Wade Davis on endangered cultures | Video on TED.com

Louise Leakey digs for humanity's origins | Video on TED.com

Nina Jablonski breaks the illusion of skin color | Video on TED.

Laurie Santos: A monkey economy as irrational as ours | Video on TED.com