The Radical Plan To Phase Out Earth's Predatory Species

Should animals be permitted to hunt and kill other animals? Some futurists believe that humans should intervene, and solve the "problem" of predator vs. prey once and for all. We talked to the man who wants to use radical ecoengineering to put an end to the carnage. » 7/30/14 11:36am 7/30/14 11:36am

Should we eliminate the human ability to feel pain?

In yesterday's Daily Explainer we told you all about pain — why it exists, how it works, and how scientists are trying to quantify its effects. Though pain has clearly served an important evolutionary purpose, not everyone is convinced that we still need it. A growing number of forward-looking thinkers are suggesting… » 9/27/12 9:00am 9/27/12 9:00am