Researchers Ran a Massive Yearlong Experiment to Get Bacteria to Evolve. Guess What Happened?

It's a struggle out there. You have to be fit to survive. When the pressure is on, nature favors the ones who can take the heat.

It's a theme that has been drummed into our heads since school. It's a cultural meme. Social Darwinists used it to justify atrocities -- see the new documentary The Biology of the Second Reich. Today's kinder, gentler Darwinists downplay the violence in the struggle for existence, yet the fact as they see it is inescapable: environmental circumstances select random...