Pinpointing when birds diverged completely from dinosaurs has long remained a paleontological mystery.

Learn more about the Magdalenian peoples, who left traces of dissection and cannibalism on bones in a cave in Poland.

The surprise discovery of earth’s core composition may debunk previous assumptions on the solidity of the planet.

Water is essential for life. Find out why it’s important and how much you really need.

Learn about two studies that anticipate a fast-approaching breach of the Paris Agreement, as temperatures on Earth begin to trend toward 1.5 degrees C above pre-industrial levels.

Learn more about the small, intimate things you can do to build a lasting relationship.

Learn how the molecule EBC-46 could advance how HIV is treated and how researchers discovered it.

The strange behavior of hypervelocity stars suggests a nearby dwarf galaxy must contain a supermassive black hole. If so, a ...

Learn more about a new tilefish species with red striped eyes, similar to San’s in Princess Mononoke.

Learn how environmental changes have humbled many of history’s most successful and dominant cultures.

Learn about the El Mirón cave in northern Spain, home to the unusually red bones of a buried woman and ancient carnivores ...

Wearable devices and fitness apps allow users to quantify every aspect of physical activity. Is it helping or hurting?