With help from Freud, neuropsychologist Mark Solms locates consciousness in choice.More
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Science and Technology
To a certain extent, loneliness is part of the human condition. You can be lonely anywhere, even surrounded by friends. But modern life has exacerbated it, and that requires modern solutions. Indie game designer Jason Rohrer has one — an artificial friend named Samantha.More
Most of us get our food from the grocery store, not the fields where it grows. But if you really want to understand where our food comes from — and the potential threats to the food supply — you have to think about seeds.More
Kamut is arguably the oldest grain in the world. Bob Quinn, who runs the multi-million dollar nonprofit Kamut International, argues that it's an example of what can be right in a very wrong American agricultural world.More
There is an unusual, giant corn in southern Mexico that gets its own nitrogen from the air — no manufacturing required.More
Botanist Robin Wall Kimmerer says there is a reason so many around the world consider corn to be sacred. We give it life, and in return, it gives us life. She says the industrial-scale farming of America has lost control of that balance.More
If a disaster wiped out our ability to grow crops, how would the survivors rebuild civilization? Back in the 1990’s Cary Fowler wondered the same thing. So he created the Svalbard Global Seed Vault – otherwise known as the Doomsday vault.More
Gavin Francis is fascinated by the complexity and beauty of the human body, which is so finely engineered that it can seem almost miraculous.More
Missy Makinia donated her kidney to whoever might need it. Her transplant surgeon — Josh Mezrich — invited Shannon into his operating room to see firsthand what it takes to remove and transport a human kidney.More
Do you know what an earthquake sounds like? Geophysicist Ben Holtzman collects recordings from around the world — from the Fukushima disaster to the manmade earthquakes caused by fracking. We hear examples of these seismic rumbles.More
Jill Heinerth nearly died when she was trapped by ocean currents inside an Antarctic iceberg. She's one of the world's most accomplished underwater cave divers, often exploring caves no one's ever been in, which show her "the veins of the Earth."More
Robert Macfarlane spent a decade exploring caves, mines, catacombs and sewers, on a quest to discover the deep underground. He found a subterranean world of wonder and horror.More
Thousands of sandhill cranes gather each fall on the banks of the Wisconsin River before they head south for the winter. Anne and Steve visited the Aldo Leopold Foundation in Baraboo, Wisconsin to witness this migration firsthand, along with their guide: wildlife ecologist Stan Temple.More
David Barrie is fascinated by how animals find their way. How do they travel thousands of miles across oceans or continents, to a place they've never been, without any other creature to show them the way?More
Science journalist Sonia Shah, herself the child of Indian immigrants, has long been fascinated with the way animals, people and even microbes move. Speaking with "To The Best Of Our Knowledge," she says migration is both a crisis and an opportunity.More
Imagine driving over a hill and seeing hundreds of zebras or a thousand wildebeest. Anne and Steve were lucky enough to witness this spectacle in the Serengeti. Their expert guide, Moses Augustino Kumburu, describes the Great Migration.More
The fact that so many animals migrate — sometimes thousands of miles — has puzzled people over the ages. Why do they take such risky journeys? Conservation biologist David Wilcove studies migration, and he says the scale of migration is staggering.More
Biologist Carin Bondar has devoted her career to exploring the myriad ways animals mate in the wild, and shared a few of the ingenious ways animals find each other, breed, and rear offspring.More