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28:10

Tim Birkhead

The early birdwatchers

Posted Sep 2010 Rated Informative, Funny
4:01 Under 6 minutes

Jessa Gamble

Our natural sleep cycle is nothing like what we do now

Posted Sep 2010 Rated Informative, Fascinating
10:39

Jeremy Rifkin

The empathic civilization

Posted Aug 2010 Rated Inspiring, Informative
20:59

Nicholas Christakis

The hidden influence of social networks

Posted May 2010 Rated Informative, Fascinating
57:55

Richard Dawkins

Growing up in the universe

Posted Jan 2010 Rated Informative, Fascinating
7:43

Vilayanur Ramachandran

The neurons that shaped civilization

Posted Jan 2010 Rated Fascinating, Informative
17:13

Elaine Morgan

I believe we evolved from aquatic apes

Posted Jul 2009 Rated Persuasive, Fascinating
14:48

Nina Jablonski

Skin color is an illusion

Posted Jul 2009 Rated Informative, Fascinating
17:51

Gregory Stock

To upgrade is human

Posted Apr 2009 Rated Inspiring, Fascinating
18:14

Bonnie Bassler

How bacteria "talk"

Posted Apr 2009 Rated Fascinating, Informative
7:45

Dan Dennett

Cute, sexy, sweet, funny

Posted Mar 2009 Rated Funny, Informative
21:46

Paul Sereno

Digging up dinosaurs

Posted Jan 2009 Rated Informative, Inspiring
16:56

Robert Wright

The evolution of compassion

Posted Oct 2008 Rated Informative, Persuasive
18:42

Jonathan Haidt

The moral roots of liberals and conservatives

Posted Sep 2008 Rated Informative, Persuasive
20:53

Spencer Wells

A family tree for humanity

Posted Aug 2008 Rated Fascinating, Informative
15:36

Louise Leakey

A dig for humanity's origins

Posted Jul 2008 Rated Informative, Fascinating
20:22

Robert Full

Robots inspired by cockroach ingenuity

Posted Jun 2008 Rated Fascinating, Ingenious
19:28

Susan Blackmore

Memes and "temes"

Posted Jun 2008 Rated Fascinating, Informative
17:51

Paul Ewald

Can we domesticate germs?

Posted May 2008 Rated Informative, Fascinating
10:12

Stephen Hawking

Questioning the universe

Posted Apr 2008 Rated Fascinating, Inspiring
17:25

Michael Pollan

A plant's-eye view

Posted Feb 2008 Rated Inspiring, Fascinating
5:27 Under 6 minutes

David Gallo

Underwater astonishments

Posted Jan 2008 Rated Fascinating, Beautiful
19:24

Robert Full

The sticky wonder of gecko feet

Posted Nov 2007 Rated Fascinating, Ingenious
6:18

Hod Lipson

Building "self-aware" robots

Posted Oct 2007 Rated Fascinating, Ingenious
23:19

Janine Benyus

Biomimicry's surprising lessons from nature's engineers

Posted Apr 2007 Rated Inspiring, Fascinating
17:25

Susan Savage-Rumbaugh

The gentle genius of bonobos

Posted Apr 2007 Rated Fascinating, Informative
16:17

Frans Lanting

The story of life in photographs

Posted Apr 2007 Rated Beautiful, Inspiring
20:00

Kevin Kelly

How technology evolves

Posted Nov 2006 Rated Persuasive, Fascinating
21:16

Dan Gilbert

The surprising science of happiness

Posted Sep 2006 Rated Fascinating, Informative
21:56

Richard Dawkins

Why the universe seems so strange

Posted Sep 2006 Rated Fascinating, Inspiring
23:27

Helen Fisher

Why we love, why we cheat

Posted Sep 2006 Rated Informative, Fascinating
24:45

Dan Dennett

Let's teach religion — all religion — in schools

Posted Jul 2006 Rated Persuasive, Informative