Podcast: An uncontacted tribe, the panda's strange diet, and why you might want to be shocked by 400,000 volts

Why has one of the world’s last uncontacted tribes made contact with the outside world? How do pandas survive on their all-bamboo diet? And could applying 400,000 volts to a person’s body pick up drugs on their skin? Science's Online News Editor David Grimm chats about these stories and more with Science's Sarah Crespi.