As an embryo grows, its cells engage in a complex...

Physicists have long grouped the most basic building blocks of...

Freshwater ecosystems cover less than 1% of Earth's surface, yet...

Woodrats are small desert rodents that have baffled scientists for...

An active galactic nucleus (AGN) is a region at the...

Most life on Earth depends on sunlight, yet some organisms...

The Met Office has issued a dire warning: global warming...

When the rain pours after a long, harsh drought, there...

Every 40 seconds, someone in the United States suffers a...

Alaska's northern pike, long thought to be confined to freshwater,...

Deep in Brazil's semi-arid Caatinga region, capuchin monkeys are teaching...