This engineer doesn’t use nail polish, but his wife does. And he deals with plenty of PCBs. What do these things have in ...

During mating season, when male white-tailed deer want to get noticed by the opposite sex and warn off rivals, they rub their antlers against trees and scrape the forest floor. Then they pee on these ...

Add Yahoo as a preferred source to see more of our stories on Google. Shine an ultraviolet flashlight on flying squirrels, and they glow bright pink. Catch a scorpion on a full moon, and you’ll notice ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Living organisms ...

UV flashlights, also known as ultraviolet or blacklight flashlights, are portable handheld devices emitting ultraviolet light. Unlike regular flashlights that produce visible light, UV flashlights ...

UV flashlights, which shine ultraviolet light, help make it easier to spot hard-to-see stains on furniture, carpets, and walls. If you have pets, they’ve probably had their share of accidents in your ...