Biologist Richard Dawkins makes a case for "thinking the improbable" by looking at how the human frame of reference limits our understanding of the universe.

Richard Dawkins urges all atheists to openly state their position -- and to fight the incursion of the church into politics and science. A fiery, funny, powerful talk.

At the Royal Institution in 1991, Richard Dawkins asks us to look at our universe with new eyes. Packed with big questions and illuminating visuals, this memorable journey through the history of life magnifies the splendor of evolution and our place in it.

What does a disgusting image have to do with how you vote? Equipped with surveys and experiments, psychologist David Pizarro demonstrates a correlation between your sensitivity to disgusting cues -- a photo of feces, an unpleasant odor -- and your own moral or political conservatism.

Starting with the simple tale of an ant, philosopher Dan Dennett unleashes a devastating salvo of ideas, making a powerful case for the existence of memes -- concepts that are literally alive.

Susan Blackmore studies memes: ideas that replicate themselves from brain to brain like a virus. She makes a bold new argument: Humanity has spawned a new kind of meme, the teme, which spreads itself via technology -- and invents ways to keep itself alive

(NOTE: Statements in this talk have been challenged by scientists working in this field. Read "Corrections & Updates" below for more details.) Elaine Morgan was a tenacious proponent of a theory that is not widely accepted. The aquatic ape hypothesis lays out the idea that humans evolved from primate ancestors who dwelt in watery habitats. H...

Genomics pioneer Craig Venter takes a break from his epic round-the-world expedition to talk about the millions of genes his team has discovered so far in its quest to map the ocean's biodiversity.

Tech enthusiast Kevin Kelly asks "What does technology want?" and discovers that its movement toward ubiquity and complexity is much like the evolution of life.

Scientific discoveries, futurist Juan Enriquez notes, demand a shift in code, and our ability to thrive depends on our mastery of that code. Here, he applies this notion to the field of genomics.

It can be easy to believe that humans are insignificant. We're specks of dust on a random planet in a vast universe. Less powerful than elephants. Fewer than ants. But David Deutsch believes that's all beside the point, because humans possess one unique skill: attaining knowledge. David Deutsch -- Oxford professor, father of quantum computing, r...

Introducing The TED Interview, a new podcast hosted by head of TED Chris Anderson. As a writer, Elizabeth Gilbert is notorious for placing her heart squarely on her sleeve. Her best-selling memoir "Eat Pray Love" was a sensation precisely because of her eloquent, open-hearted descriptions of fear, divorce and wanting everything life had to offer...