Swell sharks glow in the dark, but these animals have another impressive trick that's how they got their name.

Kayaking in glowing waters is a hot, new travel trend. Here's a collection of destinations in America to scope out the natural phenomenon, from Texas to California and more.

Ever wondered what makes those glow-in-the-dark cocktails so captivating? The secret is tonic water, which fluoresces under ultraviolet (UV) light. This effect is due to quinine, a naturally ...