Robert Gravil

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Newly Discovered Hormone Simulates Exercise In Mice

The researchers predict that it could do the same for people, too<p>Everyone knows the age-old tactics for losing weight: eat better, eat less, and exercise more. But researchers at the University of Southern California may have found a way to sidestep that simple-sounding advice. Mice injected with a …

We’re genetically more like our fathers

Look like your mother? Act like your mother? Maybe so, but a new study says we mammals are more genetically similar to our fathers.<p>A new study from a …

Infinite universes and dead strawberries: an interview with Brian Cox and Robin Ince

<b>One thing you guys do really well on the show is that you come up with ways, whether you’re planning to or not, to relate these ideas to the audience. For example, one that’s come back a couple times is the question of "when does a strawberry die?" It’s one of those simple things most people have</b> …

Europe's Languages Were Carried From the East, DNA Shows

The new settlers, revealed by a genetic analysis, may solve a mystery swirling around the origins of Indo-European languages.<p>New DNA evidence suggests that herders from the grasslands of today's Russia and Ukraine carried the roots of modern European languages across the continent some 4,500 years …

Did Dog-Human Alliance Drive Out the Neanderthals?

With the help of wolf dogs, early humans out-hunted—and outlasted—Neanderthals.<p>In popular culture, they're often portrayed like members of a heavy-metal band: fur clad, shaggy haired, ape-like. But in most ways they were like you and me. They used fire and made tools, lived in social groups, and …

Oldest Human Fossil Found, Redrawing Family Tree

Discovery pushes back the origin of our genus, Homo, by half a million years.<p>In a rare congruence of new evidence, two fossil jaws cast a fused beam of light on one of the darkest mysteries in human evolution: the origin of our genus <i>Homo</i>. The two lower jaws—one a reconstruction of a pivotal …

Dave Mackay: One-on-One

<b>Who would you say is the closest to the modern-day Dave Mackay?</b> <i><br>Christopher Spicer, Reading</i><br>One would be little Paul Scholes. He’s only small but he’s …

National Geographic Travel

The Sex Lives of Slugs—and Other Mysteries of the Animal Kingdom

Looking at and wondering about our fellow creatures is a good first step toward saving them, says author.<p>Simon Barnes is one of Britain's best-loved sportswriters. He's also a passionate wildlife enthusiast and conservationist. His new book, <i>Ten Million Aliens: A Journey Through the Entire Animal</i> …

Island’s Invasive Species Wreak Havoc: How Did They Get Here?

Changing Planet<p>Fernando de Noronha is a UNESCO World Heritage Listed site for its natural values, but beneath the tourism and pristine island beaches is a plague of pests threatening to eat everything.<p>I have spent the past three weeks on the island working with a TRIADE (<i>Brazilian Institute for</i> …

Trail of Tools Reveals Modern Humans' Path Out of Africa

Early Homo sapiens lingered in a lush Arabia before encountering Neanderthals in the Levant.<p>Where did our species come from, and how did we get from there to everywhere?<p>Genetic studies have supplied a convincing answer to the first question: Our modern human ancestors evolved in Africa, then swept …

Gigantic Black Hole Discovered From the Dawn of Time

Astronomers find a cosmic monster that pushes theories of the early universe to the limit.<p>Astronomers have identified a mammoth black hole weighing as much as 12 billion suns.<p>It's not the biggest black hole ever found, but it's astonishingly young. The giant appears to have swelled to its enormous …

Many Animals—Including Your Dog—May Have Horrible Short-Term Memories

Weird & Wild<p>Dogs may forget an event less than two minutes after it happened, according to a new study.<p>The next time your dog happily greets an old friend, remember this: Your pup likely can't remember the last time they met.<p>We often say someone has "a memory like an elephant," or, if it's a …

Short-Term Memory

Is Islam Hostile to Science?

In the golden age of Islamic science, they weren't doing Islamic science—they were doing science, says author.<p>It's easy to take the wonders of modern science—gene technology, particle physics, robotics—for granted. But it took a long, hard road of experiment and discovery—and failure—to make these …