The current rate of species extinction is alarming, but it's happening at a time when we may, for the first time in history, be able to bring back extinct species. We're getting very close. And some think

For years now something has been bugging me about the official story of the Woolly Mammoth. Watch the video to find out my thoughts and what they have to do with climate change. Do you notice something

Stewart Brand is a futurist, counterculturist and visionary with a very wide-ranging mind. In conversation with TED Curator Chris Anderson, Brand discusses ... just about everything: human nature, bringing