If the secret to getting the perfect photo is taking a lot of shots, then one lucky fruit fly is the subject of a masterpiece.
Using high-speed electron microscopy, scientists took 21 million nanoscale-resolution images of the brain of Drosophila melanogaster to capture every one of the 100,000 nerve cells that it contains. It’s the first time the entire fruit fly brain has been imaged...
Neuroscientist Barbara Bendlin studies the brain as Alzheimer’s disease develops. When she goes home, she tries to leave her work in the lab. But one recent research project has crossed into her personal life: She now takes sleep much more seriously.
Bendlin works at the University of Wisconsin–Madison, home to the Wisconsin Registry for Alzheimer’s Prevention, a study of more than 1,500...
News in Brief
The first global maps of Pluto and its moon Charon are now available, putting a bookend on NASA’s New Horizons mission.
“From a completionist’s point of view, they are all the good data we have, stitched together into a coherent, complete mosaic,” says planetary scientist Ross Beyer of NASA’s Ames Research Center in Moffett Field, Calif.
The charts focus on the 42 percent of Pluto...
For more than a century, scientists have known that abnormal clumps and tangles in the brain are the hallmarks of Alzheimer’s disease. But identifying the cause of that devastating damage has proven elusive, hampering efforts to come up with a cure for an affliction that robs memory from millions of people worldwide.07/11/2018 - 07:00 Science & Society, Health, Neuroscience
But what if those clumps and tangles accumulated because the brain...
This wasn’t 15-year-old Connor McMahon’s first time in the hospital. But the 107° fever he’d been running for three days had his dad frightened. The teen was hallucinating, talking gibberish and spouting curses.
“I thought he was going to die,” says Connor’s father, Don McMahon, who stayed close as his son received and recovered from an experimental treatment for leukemia. “It was really...
Around 13,000 years ago, Earth was emerging from its last great ice age. The vast frozen sheets that had covered much of North America, Europe and Asia for thousands of years were retreating. Giant mammals — steppe bison, woolly mammoths and saber-toothed cats — grazed or hunted across tundra and grasslands. A Paleo-Indian group of hunter-gatherers who eventually gave rise to the Clovis people...
Turning on genes may work like forming a flash mob.
Inside a cell’s nucleus, fast-moving groups of floppy proteins crowd together around gene control switches and coalesce into droplets to turn on genes, Ibrahim Cissé of MIT and colleagues report June 21 in two papers in Science.
Researchers have previously demonstrated that proteins form such droplets in the cytoplasm, the cell’s...
About 99 million years ago, tiny frogs hopped through a wet, tropical forest — and an unlucky few ran afoul of some tree sap. Four newly described frog fossils, preserved in amber, offer the earliest direct evidence of ancient frogs living in a humid tropical clime — just as many modern amphibians do.
None of the frog fossils is complete, making it difficult to place the frogs within...
Commercials abound for DNA testing services that will help you learn where your ancestors came from or connect you with relatives. I’ve been interested in my family history for a long time. I knew basically where our roots were: the British Isles, Germany and Hungary. But the ads tempted me to dive deeper.
Previous experience taught me that different genetic testing companies can yield...
Michael Douglas, a new resident of southern Maryland, credits genetic testing for helping him find his heritage — and a family he knew very little about.
Douglas, 43, is adopted. He knew his birth mother’s name and had seen a birth certificate stating his birth name: Thomas Michael McCarthy. Over the years, Douglas had tried off and on to find his birth family, mostly by looking for his...