Kelsey Arbogast

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Beyond the Nobel: What Scientists Are Learning About How Your Brain Navigates

"Can you point to Center City?" neuroscientist Russell Epstein likes to ask visitors to his office at the University of Pennsylvania in Philadelphia. …

Your nose knows death is imminent | Mo Costandi

Losing the sense of smell predicts death within five years, according to new research<p>Until as recently as 1987, British coal pits employed caged canaries as sentinels that alerted miners to the presence of poisonous gases. Being more sensitive to them than we are, the birds would get distressed …

Curiosity rover drill pulls first taste from Mars mountain

The mission’s emphasis has changed from drive, drive, drive to systematic layer-by-layer investigation. “Curiosity flew hundreds of millions of miles …

With the 2014 Climate Summit behind us, environmentalists ponder: what about our forests?

Changing Planet<p>I am an optimist. I celebrate the rescue of even a single pangolin despite knowing the species is <i>critically endangered</i> and that the odds of their continued existence are poor. When I undertake a tree planting in Borneo, I will celebrate the planting of a mere few dozen critically …

It's Thanks to Evolution That No Two Faces Are Alike, Study Finds

Humans' stunning diversity of facial features evolved to make recognition easier, a study says.<p>From bug eyes to aquiline noses, square jaws to chin dimples, no two faces are alike. That diversity may have evolved to make it easier to recognize other people, researchers reported on Tuesday.<p>The shape …

A looming problem: How to ration Ebola vaccines and medicines

For doctors and public health officials trying to contain the<p>Ebolaepidemic, the dearth of drugs and vaccines is only part of the problem. Once these medicines become available, there certainly won't be enough of them to go around.<p>So experts are devising ways to ration the precious products — and …

Surprise! Giant Black Hole Discovered in Dwarf Galaxy

Astronomers have just discovered the smallest known galaxy that harbors a huge, supermassive black hole at its core.<p>The relatively nearby dwarf galaxy is thought to house a supermassive black hole at its heart equal in mass to about 21 million suns. The discovery suggests that supermassive black …

Universe

Climate Change May Put Half of North American Birds at Risk of Extinction

An Audubon Society study finds that climate change will force 314 bird species out of their current ranges.

Blocking one receptor could halt rheumatoid arthritis

Researchers at the University of Illinois at Chicago College of Medicine have shown for the first time how the activation of a receptor provokes the …

Alzheimer's Is Type 3 Diabetes

The idea that Alzheimer's is a form of diabetic disease has been gaining currency in medical circles for almost ten years. The accumulated evidence …

U.N. climate agency reports carbon dioxide growing at alarming rate

Carbon dioxide accumulation in the atmosphere reached a record high last year and grew at the fastest rate in 30 years, the United Nations' climate agency reported Tuesday.<p>The World Meteorological Organization's latest Greenhouse Gas Bulletin "injected even greater urgency into the need for …

Training the Brain to Love Broccoli

A new study finds that behavioral intervention could help vegetables light up the neurological reward system the way a cookie does.<p>When you eat a cookie, your brain sparkles. That’s a scientific description of how cookies work. An MRI can see those sparkles as dopamine neurons light up in response …

Even the Ancestors of Mammals Loved the Nightlife

A nocturnal existence is a way of life for numerous mammals, from bats that swoop through dark skies, to skunks that emit their noxious spray under moonlight, to the majestic lions, tigers and leopards that prowl the night.<p>But this love of nightlife appears to have begun much earlier than …

Dinosaurs

A Truly Global Germ: The Case of Malassezia

Whenever a pathogen is discovered, one of the most important aspects of prevention and control is identifying the source. Researchers and public health officials work tirelessly to find the reservoir in the hopes of bringing the scourge to an end. Sometimes, the hunt can take some surprising turns …

Iceland volcano: Magma moving towards new volcanic system

<b>A volcanic system close to Iceland's Bardarbunga's volcano was hit by a magnitude 4.5 earthquake in the early hours of Wednesday.</b><p>It adds to concerns that magma from Bardarbunga could feed into the nearby Askja volcano.<p>British and Icelandic scientists say that 50 million cubic metres of molten rock …

We Can Now Genetically Engineer Muscular Dystrophy Out Of Mice

Muscular dystrophy is a disease that, even when it’s not fatal, still makes life difficult at best for the thousands of sufferers. But we might just be on the verge of stopping it altogether.<p>A University of Texas research team has been working on removing the mutation using CRISPR/Cas9-mediated …