It’s not easy living the high life. Take it from the Andean leaf-eared mouse, Earth’s highest-dwelling mammal. To tolerate ...

Living at altitudes with less than half the oxygen at sea level, these mice have adapted to their environment in unique ways ...

More than 22,000 feet above sea level—and 6,000 feet higher than the highest human settlement—you might find an Andean leaf-eared mouse, the highest-dwelling mammal in the world. Six years ago a ...

Credit: Shutterstock A wild mouse with an unusually long life may reveal clues to healthy aging. Aging is often treated as an unavoidable biological process, but evolution tells a more complicated ...

Across the animal world, some species decline rapidly after reaching adulthood while others stay active and healthy for years ...

The wonderful world of tennis is helping nature’s tiniest mammals survive. Each year, following Wimbledon, thousands of used tennis balls are donated to UK Wildlife Trust. Volunteers at the ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The desert dunes of Dubai have some unexpected guests—a pack of rodents ...