Common fireworks release toxic metals into the air

Some of America's favorite Independence Day fireworks emit lead, copper, and other toxins, a new study suggests. These metals, which are used to give fireworks their vibrant color, also damage human cells and animal lungs.

Jewel beetles' sparkle helps them hide in plain sight

Bright colors are often considered an evolutionary tradeoff in the animal kingdom. Yes, a male peacock's colorful feathers may help it attract a mate, but they also make it more likely to be seen by a hungry jungle cat. Jewel ...

The bizarre social history of beds

Groucho Marx once joked, "Anything that can't be done in bed isn't worth doing at all." You might think he was referring to sleeping and sex. But humans, at one time or another, have done just about everything in bed.

Love Island: Flamboyant males get the girls on Madagascar

Biodiversity hotspot Madagascar is one of the world's biggest islands, and home to some of its biggest insects. Now German scientists have discovered two new species of giant stick insect, living only in the dry forests of ...