Social Justice Why Are Chili Peppers So Spicy? Ecologist Josh Tewksbury explains the strategy behind chili peppers producing such spicy products. Jai Ranganathan
Environment A Spicy Way to Keep the Weight Off? Think you might be adding an extra pound or two around the middle? Well, then it might be time to reach up to that spice shelf and take down your bottle of turmeric powder. Matt Palmquist