Some vegans are mad at Starbucks for coloring its Strawberry Frappuccino with a food dye made from the crushed cochineal bug. Cochineal bugs color lots of things: yogurt, candy, cosmetics. But they’re ...

One day in April, I wandered across a field in the English county of Shropshire, in search of a robot tractor. Dark clouds scudded across the sky, rain came in squalls, and a line of oak trees ...