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 ...

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

A new study at a Spanish zoo showed the giraffes could do rudimentary mathematics. What animals can do arithmetic?

Some people live past 100 with remarkable health, and researchers may have uncovered one reason why. A new study found that ...

A study of centenarians in Sardinia's "Blue Zone" suggests that openness, a trait linked to curiosity and willingness to try ...

Scientists have found fresh evidence that Earth’s core may be slowly leaking gold and other precious metals into the mantle.

A new robotic heart can recreate different stages of heart failure, potentially giving researchers a new way to test ...

Lovebirds are unusual not just because of their shameless PDA, but because they choose one mate for life. While more than 90 ...

All Mediterranean sperm whales were thought to be part of one cultural group, identifiable by a unique pattern of clicks, or ...

(Maki Nakamura/DigitalVision/Getty Images) When it comes to aging well, diet, exercise, and social interaction may get most ...

For anyone who has ever wondered whether they could handle life on another planet, NASA is offering a chance to find out – ...

We weren't seeing the planted forest for the billions of trees. The post Something Weird Is Going on With the 66 Billion ...