Confused about what to do at a red light? Here's when it's legal to turn, what flashing signals mean, and who can go through a red light.

Christmas cactus leaves turn red when the plant is stressed, most often due to an error in care. Too much direct sunlight is the most common cause of discolored ...

This is the time of year when Nicole Hughes gets constantly distracted by the fall foliage as she drives around North Carolina. "I'm always looking," says Hughes, a biologist at High Point University.