Color-morphing may sound less intimidating than, say, baring teeth or dragging hooves, but male chameleons rely on such psychedelic intimidation to ward off male rivals, according to a new study.

From dancing bears to flower-wreathed skulls, few bands are as well known for their intricate artwork and trippy color palettes as ‘60s psychedelic legends The Grateful Dead. So when playing card ...

Color-morphing may sound less intimidating than, say, baring teeth or dragging hooves, but male chameleons rely on such psychedelic intimidation to ward off male rivals, according to a new study.