Pink—which may go back over a billion years—was once the color of fierce ancient hunters, powerful French women, and yes, boys. Pink has long beguiled humans—used to dye clothing and tint cheeks even ...

For example, if you’ve recently been to a fast food restaurant, you might notice that there’s a lot of red–red chairs and red signs, red trays, and red cups. When, on the other hand, was the last time ...