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Sometime between three million and two million years ago, perhaps on a primeval sa

Humans have a seemingly primal need to understand how we came to be the way we are today. Pieces of our ancient forebears generally are hard to come by, however. Scientists working to interpret our evolution often have had to make do with studying a fossil toe bone here or a jaw there

Humans have a seemingly primal need to understand how we came to be the way we are today. Pieces of our ancient forebears generally are hard to come by, however.

Scientists discover new species all the time--on the order of 15,000 a year. One of the latest additions to the tree of life is a new type of leopard frog

“We open on a lone soldier walking through the desert. The year: 1861. The place: Mars!” [More]

By Virginia Gewin of Nature magazine Hidden in the landscape of the fertile crescent of the Middle East, scientists say, lurk overlooked networks of small settlements that hold vital clues to ancient civilizations. Beyond the impressive mounds of earth, known as tells in Arabic, that mark lost cities, researchers have found a way to give archaeologists a broader perspective of the ancient landscape.

Not all fats are created equal. Scientists have known since the 1950s that replacing saturated fats with unsaturated ones can have profound health benefits . Diets that are high in solid fats, such as butter and animal fat, lead to elevated risks of cardiovascular disease and high cholesterol

Everyone knows that we as humans literally owe the air we breathe to the greenery around us. As school children we learned that plants (as well as algae and cyanobacteria) perform the all-important biological "magic trick" known as photosynthesis , which helps generate the atmospheric oxygen we take in with every breath. [More]

University of Texas researchers have developed a sophisticated new mapping tool showing where vulnerability to climate change and violent conflicts intersects throughout the African continent. [More]

By Mark Schrope of Nature magazine The director who once jokingly proclaimed himself the "king of the world" is about to become the master of the depths.

By Mark Schrope of Nature magazine The director who once jokingly proclaimed himself the "king of the world" is about to become the master of the depths. [More]

By Mark Schrope of Nature magazine The director who once jokingly proclaimed himself the "king of the world" is about to become the master of the depths. [More]

Snowy Owl, by Anita (Grade 7), Watercolor. Courtesy of Tyson Schoeber.

Linux and Android are two closely linked open-source projects, but they've been as notable for how distant they are from each other--until yesterday. That's when Linus Torvalds, leader of the Linux kernel project, released a version of the operating system core that bridges between the two worlds.

Linux and Android are two closely linked open-source projects, but they've been as notable for how distant they are from each other--until yesterday. That's when Linus Torvalds, leader of the Linux kernel project, released a version of the operating system core that bridges between the two worlds