Is de-extinction possible? Find out right now.

De-extinction is the act of bringing an entire species back from the grave. It's the real-life version of Jurassic Park. And tomorrow, National Geographic and the Long Now Foundation are sponsoring a special TEDxDeExtinction event, where scientists and researchers are discussing whether we'll ever bring back mastodons… » 3/14/13 7:40am 3/14/13 7:40am