Ten thousand years ago, a golden grain got naked, brought people together and grew to become one of the top agricultural commodities on the planet. Now, researchers have found that just a single letter change in the genetic script of corn's ancestor, teosinte, helped make it all possible.
The first human inhabitants of the Americas lived in a time thousands of years before the first written records, and the story of their transcontinental migration is the subject of ongoing debate. A study presents strong evidence, gleaned from ancient and modern DNA samples, that the ancestry of all Native Americans can be traced back to a single migration event.
Officials with UC Berkeley's botanical garden say the garden had its busiest day in more than a decade as people flocked to get a whiff of the "corpse flower," a plant known for its pungent odor.
The examination of epigenomes, the machinery that turns on and off genes and a very prominent field of study in diseases such as stem cell differentiation, inflammation and cancer, requires mapping DNA interactions with a certain protein in the entire genome. A new technology that will dramatically aid investigations of epigenomes.
Dutee Chand, a 19-year-old sprinter from India, was banned by an international body from competing because of elevated levels of testosterone in her body. But in a reversal, the Court of Arbitration for Sport today announced that she can again run and compete.
The brains of more intelligent people are capable of solving tasks more efficiently, which is why these people have superior cognitive faculties. Now, a researcher has found evidence of this effect for the first time in a group of people possessing above-average intelligence for tasks involving what is referred to as working memory.
More than a quarter million sockeye salmon returning from the ocean to spawn are either dead or dying in the Columbia River and its tributaries because of warming water temperatures. Federal and state fisheries biologists say the warm water is lethal for the cold-water species and is wiping out at least half of this year's return of 500,000 fish.
A bomb-proof lining has successfully contained blasts in a series of controlled explosions in the luggage hold of a Boeing 747 and an Airbus 321. The Fly-Bag, which lines an aircraft’s luggage hold with multiple layers of novel fabrics and composites, was tested under increasing explosive charges on disused planes.
You’re enjoying the sunset on a warm summer’s day, when suddenly, a buzzing mass of midges surrounds you. The bugs collide with your face as their apparently random flight paths coalesce to form a seemingly haphazard swarm. Scientists have shown that swarming midges fleetingly dance with each other as if attached by a spring, giving researchers better insights into the rules underlying insect swarms and other animal collectives.
Scientists have uncovered a port of liver entry for malaria parasites. If these results hold up in humans, drugs that target this entry protein might help prevent the spread of disease.
Eating for pure pleasure instead of hunger is controlled by a hormone in the brain, according to new research. The work could point to brain-first targets to combat the burgeoning obesity epidemic.
Stephen Hawking, the legendary theoretical physicist, will now take your questions. Hawking is the latest notable to take part in the Reddit AMA (“Ask Me Anything”) series.
You can file this under believe it or not news: a Syracuse University professor has created trees that can bear 40 different types of fruit. A new National Geographic video profiles Sam Van Aken, an artist and professor at Syracuse who uses “chip grafting” to create these amazing trees.
Researchers have now determined that the western U.S.— a region including Nevada, Utah, Oregon and parts of California— was a rather damp setting until approximately 8,200 years ago when the region began to dry out, eventually assuming the arid environments we see today.
The president of Planned Parenthood said her organization's clinics never adjust the abortion procedure to better preserve fetal organs for medical research and that the company’s charges cover only the cost of transmission to researchers.