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How to truly listen

In this soaring demonstration, deaf percussionist Evelyn Glennie illustrates how listening to music involves much more than simply letting sound waves hit your eardrums.

The gentle genius of bonobos

Savage-Rumbaugh's work with bonobo apes, which can understand spoken language and learn tasks by watching, forces the audience to rethink how much of what a species can do is determined by biology -- and how much by cultural exposure.

What separates us from chimpanzees?

Jane Goodall hasn't found the missing link, but she's come closer than nearly anyone else. The primatologist says the only real difference between humans and chimps is our sophisticated language. She urges us to start using it to change the world.

Sheila Patek clocks the fastest animals

Biologist Sheila Patek talks about her work measuring the feeding strike of the mantis shrimp, one of the fastest movements in the animal world, using video cameras recording at 20,000 frames per second.

Four American characters

Writer and actor Anna Deavere Smith gives life to author Studs Terkel, convict Paulette Jenkins, a Korean shopkeeper and a bull rider, excerpts from her solo show "On the Road: A Search for American Character."

Tierney Thys swims with the giant sunfish

Marine biologist Tierney Thys asks us to step into the water to visit the world of the Mola mola, or giant ocean sunfish. Basking, eating jellyfish and getting massages, this behemoth offers clues to life in the open sea.

Happiness in body and soul

Eve Ensler, creator of "The Vagina Monologues," shares how a discussion about menopause with her friends led to talking about all sorts of sexual acts onstage, waging a global campaign to end violence toward women and finding her own happiness.

Jill Sobule sings to Al Gore

A happy song about global warming, from Jill Sobule.

Want to help Africa? Do business here

We know the negative images of Africa -- famine and disease, conflict and corruption. But, says Ngozi Okonjo-Iweala, there's another, less-told story happening in many African nations: one of reform, economic growth and business opportunity.

The emergent genius of ant colonies

With a dusty backhoe, a handful of Japanese paint markers and a few students in tow, Deborah Gordon digs up ant colonies in the Arizona desert to understand their complex social system.

Eddi Reader on "What You've Got"

Singer/songwriter Eddi Reader performs "What You Do With What You've Got," a meditation on a very TED theme: how to use your gifts and talents to make a difference. With Thomas Dolby on piano.

Jehane Noujaim wishes for a global day of film

Jehane Noujaim unveils her 2006 TED Prize wish: to bring the world together for one day a year through the power of film.

Eddi Reader sings "Kiteflyer's Hill"

Singer/songwriter Eddi Reader performs "Kiteflyer's Hill," a tender look back at a lost love. With Thomas Dolby on piano.

Nora York sings "What I Want"

Nora York gives a stunning performance of her song "What I Want," with Jamie Lawrence (keyboards), Steve Tarshis (guitar) and Arthur Kell (bass).

Why we love, why we cheat

Anthropologist Helen Fisher takes on a tricky topic – love – and explains its evolution, its biochemical foundations and its social importance. She closes with a warning about the potential disaster inherent in antidepressant abuse.

Amy Smith shares simple, lifesaving design

Fumes from indoor cooking fires kill more than 2 million children a year in the developing world. MIT engineer Amy Smith details an exciting but simple solution: a tool for turning farm waste into clean-burning charcoal.

Eva Vertes looks to the future of medicine

Eva Vertes -- only 19 when she gave this talk -- discusses her journey toward studying medicine and her drive to understand the roots of cancer and Alzheimer’s.