From the spider in the corner of your house, to the moths in your attic, synanthropic species don't just live among us, they literally depend on us to live. Chapters View all synanthropic species 0:34 1 COMMON HOUSE SPIDERS 2:14 PURPLE...

Don't make people pay for music, says Amanda Palmer: Let them. In a passionate talk that begins in her days as a street performer (drop a dollar in the hat for the Eight-Foot Bride!), she examines the new relationship between artist and...

They predate the dinosaurs and they outnumber us by trillions, yet you might not ever have the pleasure of seeing one. So let us introduce to you, the nematode.

Some lizards will lose a tail to avoid becoming a meal, but there's more than one reason for animals to self-amputate.

Explore the lytic and lysogenic viral replication cycles with the Amoeba Sisters! This video also discusses virus structures and why a host is critical for viral reproduction. Expand details for table of contents and further reading...

We chose not to give a numerical value for how many characteristics of life there are, because we do not want to imply that what we are listing must be a specific order, or that it cannot be expanded upon or include exceptions....

Check out nine abundant animals that help support the food chain in their ecosystems!

How do we explain the unexplainable? This question has inspired numerous myths, religious practices and scientific inquiries. But Zen Buddhists practicing throughout China from the 9th to 13th century asked a different question - why do...

Want to connect with a depressed friend but not sure how to relate to them? Comedian and storyteller Bill Bernat has a few suggestions. Learn some dos and don'ts for talking to people living with depression -- and handle your next...

Anab Jain brings the future to life, creating experiences where people can touch, see and feel the potential of the world we're creating. Do we want a world where intelligent machines patrol our streets, for instance, or where our...

Kevin Breel didn't look like a depressed kid: team captain, at every party, funny and confident. But he tells the story of the night he realized that -- to save his own life -- he needed to say four simple words.

Living in a city means accepting a certain level of dysfunction: long commutes, noisy streets, underutilized spaces. Carlos Moreno wants to change that. He makes the case for the "15-minute city," where inhabitants have access to all the...

Physicist Freeman Dyson suggests that we start looking for life on the moons of Jupiter and out past Neptune, in the Kuiper belt and the Oort cloud. He talks about what such life would be like -- and how we might find it.

Alzheimer's doesn't have to be your brain's destiny, says neuroscientist and author of "Still Alice," Lisa Genova. She shares the latest science investigating the disease -- and some promising research on what each of us can do to build...

Giles Duley gave up a life of glamour and celebrity as a fashion photographer to travel the world and document the stories of the forgotten and marginalized. While on assignment in Afghanistan he stepped on a landmine, a horrific event...

After losing her mother in a house fire when she was just six years old, Danielle Torley saw two paths before her: a life full of fear, or one that promised healing and recovery. In this inspiring talk, she describes how she turned her...

Every cell that's ever lived has been the result of the four-letter genetic alphabet: A, T, C and G -- the basic units of DNA. But now that's changed. In a visionary talk, synthetic biologist Floyd E. Romesberg introduces us to the first...

Within this generation, an extra 30 years have been added to our life expectancy -- and these years aren't just a footnote. Jane Fonda asks how we can re-imagine this new phase of our lives.

Actor Thandie Newton tells the story of finding her "otherness" -- first, as a child growing up in two distinct cultures, and then as an actor playing with many different selves. A warm, wise talk, fresh from stage at TEDGlobal 2011.

At least 400 million people worldwide live in ultra-poverty: a state of severe financial and social vulnerability that robs many of hope and dignity. At BRAC, an international development organization focused on fighting poverty,...

In the center of Caracas, Venezuela, stands the 45-story "Tower of David," an unfinished, abandoned skyscraper. But about eight years ago, people started moving in. Photographer Iwan Baan shows how people build homes in unlikely places,...

In 2013, the world learned that the NSA and its uK equivalent, GCHQ, routinely spied on the German government. Amid the outrage, artists Mathias Jud and Christoph Wachter thought: Well, if they're listening ... let's talk to them. With...

It's been a weird 100 years for artists and creators, says musician and entrepreneur Jack Conte. The traditional ways we've turned art into money (like record sales) have been broken by the internet, leaving musicians, writers and...

In today's world, balancing school, work, kids and more, most of us can only hope for the recommended eight hours of sleep. Examining the science behind our body's internal clock, Jessa Gamble reveals the surprising and substantial...