Melting glaciers in Boulder release sulfate into wetlands, increasing methylmercury production and ecosystem risks.

The world has a few incredibly dry places, and when you think of them, deserts probably come to mind. From the Sahara in ...

The ocean hides mountains older than dinosaurs. Harder to explore than space, its depths hold ancient secrets the scientists ...

Alpacas are small camelid mammals raised by the ancient Incas in South America over 6000 years ago. Kept in herds, alpacas ...

It is another steamy morning in Puerto Maldonado, and Gabriel Granados Olivera and I are sitting on a low-slung motorized ...

Explore daily insights on the USA TODAY crossword puzzle by . Uncover expert takes and answers in our crossword blog.

Mountains have always held a special allure - whether it’s their towering peaks, breathtaking landscapes, or the serenity ...

The world’s essential pollinators – bees, moths and butterflies – bring color to the world and put food on our plates. Far ...

From the snow-capped Andes to the warm turquoise waters of the Caribbean, Colombia has nominated eight remarkably diverse ...

Each quarter, the Selected Lists teams compile the officially nominated titles to date. These titles have been suggested by ...