You've probably heard the phrase "Sadder but wiser," implying that feeling low somehow makes us think more clearly.
Recent research on human decision-making in high-pressure situations has yielded some surprising results.
Ever get frustrated by too many choices? Your frustration could lead to clinical depression. Learn more on this Moment of Science.
In this instance, nature is said to have “selected” the camouflaged butterfly over other variations that weren’t as well hidden. In “artificial selection,” the same thing happens, only we human beings make the choices.