ScienceDaily: Most Popular News

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• Dreadnoughtus: Gigantic, exceptionally complete sauropod dinosaur
• First Neanderthal rock engraving found in Gibraltar: Abstract art older than thought?
• Potential for 'in body' muscle regeneration, rodent study suggests
• Scientists make diseased cells synthesize their own drug
• Ocean mappers discover seamount in Pacific Ocean
• Possible neurobiological basis for tradeoff between honesty, self-interest
• Why is stress more devastating for some?
• Energy drinks can cause heart problems, study suggests
• Danish museum discovers unique gift from Charles Darwin
• Anguish of romantic rejection may be linked to stimulation of areas of brain related to motivation, reward and addiction

Dreadnoughtus: Gigantic, exceptionally complete sauropod dinosaur Posted: 04 Sep 2014 06:30 AM PDT The new 65-ton (59,300 kg) dinosaur species Dreadnoughtus schrani is the largest land animal for which body mass can be accurately calculated. Its skeleton is the most complete ever found of its type, with over 70 percent of the bones, excluding the head, represented. Because all previously discovered supermassive dinosaurs are known from relatively fragmentary remains, Dreadnoughtus offers an unprecedented window into the anatomy and biomechanics of the largest animals to ever walk the Earth.

First Neanderthal rock engraving found in Gibraltar: Abstract art older than thought? Posted: 04 Sep 2014 05:45 AM PDT The first example of a rock engraving attributed to Neanderthals has been discovered in Gorham's Cave, Gibraltar. Dated at over 39,000 years old, it consists of a deeply impressed cross-hatching carved into rock. Its analysis calls into question the view that the production of representational and abstract depictions on cave walls was a cultural innovation introduced into Europe by modern humans. On the contrary, the findings support the hypothesis that Neanderthals had a symbolic material culture.

Potential for 'in body' muscle regeneration, rodent study suggests Posted: 02 Sep 2014 11:32 AM PDT What if repairing large segments of damaged muscle tissue was as simple as mobilizing the body's stem cells to the site of the injury? New research in mice and rats suggests that "in body" regeneration of muscle tissue might be possible by harnessing the body's natural healing powers.

Scientists make diseased cells synthesize their own drug Posted: 02 Sep 2014 11:32 AM PDT In a new study that could lead to many new medicines, scientists have adapted a chemical approach to turn diseased cells into unique manufacturing sites for molecules that can treat a form of muscular dystrophy.

Ocean mappers discover seamount in Pacific Ocean Posted: 02 Sep 2014 11:32 AM PDT Scientists on a seafloor mapping mission have discovered a new seamount near the Johnson Atoll in the Pacific Ocean. The summit of the seamount rises 1,100 meters from the 5,100-meter-deep ocean floor. The seamount's impact remains unknown -- for now. It's too deep (its summit lies nearly 4,000 meters beneath the surface of the ocean) to be a navigation hazard or to provide rich fisheries. "It's probably 100 million years old," Gardner says, "and it might have something in it we may be interested in 100 years from now."

Possible neurobiological basis for tradeoff between honesty, self-interest Posted: 02 Sep 2014 08:42 AM PDT What's the price on your integrity? Tell the truth; everyone has a tipping point. We all want to be honest, but at some point, we'll lie if the benefit is great enough. Now, scientists have confirmed the area of the brain in which we make that decision, using advanced imaging techniques to study how the brain makes choices about honesty.

Why is stress more devastating for some? Posted: 02 Sep 2014 06:41 AM PDT Some take stress in stride; others struggle with it, even developing psychiatric disorders. New research has identified the molecular origins of this so-called stress gap in mice. The results could contribute to a better understanding of the development of depression and other disorders brought on by stress.

Energy drinks can cause heart problems, study suggests Posted: 31 Aug 2014 09:52 AM PDT Energy drinks can cause heart problems according to research. "So-called 'energy drinks' are popular in dance clubs and during physical exercise, with people sometimes consuming a number of drinks one after the other. This situation can lead to a number of adverse conditions including angina, cardiac arrhythmia (irregular heartbeat) and even sudden death," researchers report.

Danish museum discovers unique gift from Charles Darwin Posted: 29 Aug 2014 05:39 AM PDT The Natural History Museum of Denmark recently discovered a unique gift from one of the greatest-ever scientists. In 1854, Charles Darwin – father of the theory of evolution – sent a gift to his Danish colleague Japetus Steenstrup, director of the Royal Museum of Natural History. Until very recently, no one at the museum knew that it possessed a piece of scientific history of this caliber. Just a few weeks ago, the head of exhibitions was studying the correspondence between Steenstrup and Darwin as part of her search for objects to include in an upcoming exhibition. She started to suspect a treasure lay hidden somewhere, and soon a hunt was launched among the museum's 14 million objects.

Anguish of romantic rejection may be linked to stimulation of areas of brain related to motivation, reward and addiction Posted: 22 Jul 2010 11:22 AM PDT Breaking up really is hard to do, and a recent study found evidence that it may be partly due to the areas of the brain that are active during this difficult time.

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