Tomatoes are nightshades, a group of plants that also includes eggplants, potatoes and peppers. Nightshades, also known as Solanaceae, produce bitter compounds called alkaloids, which help fend off ...

National Geographic photographer Brian Skerry has logged more than 10,000 hours under water—but he's never before snapped a ...

A road trip is one of the best ways to see some of the most notable attractions and landmarks the United States has to offer. With long highways and many small towns to drive through, it’s quite a ...