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Are you smarter than your computer? What about a robot? Explore the science of artificial intelligence.

From films to television shows to the theater, acting brings our favorite characters to life.

From boycotts to strikes, activism drives social, political and environmental change around the world.

Advertising is everywhere. Learn the tricks of the marketing trade, from billboards to commercials.

Go on a virtual safari through the countries and cultures of Africa, from the Sahara to the Kalahari.

Before there was Farmville, there was agriculture. Explore food production, sustainable farming and more.

Stay up to date on AIDS and HIV research, prevention, treatment and awareness.

Who spiked the punch? Vodka or rum, mixed drinks or shots, get recipe ideas for your next party.

Solar, wind, hydro, or nuclear? Stay in the know about alternative forms of renewable energy.

Independent and edgy, get a different spin from alternative news that's far from mainstream.

Obsessed with Radiohead? Play Nirvana on repeat? Alternative rock music is awesome. Check out more.

Relax, meditate or just chill out to the electronic beats and instrumentals of ambient music.

Explore the classics of American literature, from Twain to Hemingway to Poe.

Not much of a rule-follower? Explore anarchism, stateless societies, revolutionary theory and more.

Explore the biology and physiology of the human body. Like Grey's Anatomy, minus the love triangles.

Last Tuesday might feel like ancient history, but the Greeks and Romans knew better. Check it out.

From baby animals to wild creatures to exotic pets, discover cute pictures and more about animals.

Where did we come from? Learn more about human origins through cultural and social anthropology.

Addicted to Antiques Roadshow? Explore the world of collectibles, dealers, auctions and more.