Brain Candy

The isolated tribes of the Amazon are getting dispersed or dying out. Ethnobotanist Mark Plotkin describes what we'll lose if their culture and collective wisdom vanish with them.

Antibiotics save lives, but we rely on them too much. Eventually, the drugs may stop working. Economist Ramanan Laxminarayan asks us to think twice before reaching for this double-edged resource.

Ecologist Jon Foley says agriculture is the "most powerful force unleashed on this planet since the end of the ice age." He says we're using too much to irrigate and we have to rethink how we farm.

When you have to remember many things at once, you might try to juggle all those to-do items in your head simultaneously. But new scientific research suggests there might be a better approach.

Ants don't show road rage. In fact, some research shows they rarely get into traffic jams and are able to maintain a steady speed even as their numbers swell. Can physics explain it?

Director Cesar Kuriyama shoots one second of video every day as part of an ongoing project to remember the special moments of his life.

Dan Gilbert shares research on what he calls the "end of history illusion," where we think the person we are right now is the person we'll be for the rest of time. Hint: that's not the case.