You probably spotted many people wearing green on Monday in honor of St. Patrick’s Day, but green is a popular color all year round because it tends to spark positive emotions.

It’s that time of year again, and beyond its association with St. Patrick's Day, the color green can spark many positive ...

It is named not for the color ... types of green turtles—scientists are currently debating whether they are subspecies or separate species—including the Atlantic green turtle, normally found ...