Conn. Shooter Adam Lanza; 'Obviously Not Well'












Adam Lanza, the 20-year-old who killed 20 children and six adults at Sandy Hook Elementary School in Newtown, Connecticut this morning, was "obviously not well," a relative told ABC News.


Family friends in Newtown also described the young man as troubled and described his mother Nancy as very rigid. "[Adam] was not connected with the other kids," said one friend.


Late today, police said Nancy Lanza's body was found in the family home. According to sources, Lanza shot his mother in the face, then left the house armed with at least two semi-automatic handguns and a semi-automatic rifle.


State and federal authorities believe his mother may have once worked at the elementary school where Adam went on his deadly rampage, although she was not a teacher, according to relatives, perhaps a volunteer.




As part of the investigation authorities searched the New Jersey apartment of Adam's older brother Ryan in Hoboken, New Jersey.


Police had initially identified Ryan as the killer, until he sent out a series of Facebook posts saying it wasn't him and that he was at work all day.


Sources told ABC News that Ryan, 24, works as a senior person in Ernst and Young's tax practice in Manhattan.


"He's a tax guy and he is clean as a whistle," a source familiar with his work said.


Ryan has worked at the firm 4 years.


Today the NYPD and FBI went to Ernst & Young and removed Ryan's laptop and other possessions, which is part of the normal investigative process.


Officials were interviewing Ryan and his father, but neither person was under any suspicion, multiple sources said.


MORE: 27 Dead, Mostly Children, at Connecticut Elementary School Shooting


LIVE UPDATES: Newton, Conn. School Shooting


Click Here for the Blotter Homepage.



Read More..

Today on New Scientist: 13 December 2012







Violent beauty at the end of an Alaskan glacier

You can almost hear the crash of ice on water in this stunning image of an ice sheet calving off the Chenega glacier in Alaska



Overeating now bigger global problem than lack of food

The most comprehensive disease report ever produced confirms that, for the first time, there is a larger health problem from people eating too much than too little



In search of the world's oldest cave etching

Strange markings on the walls of a cave in Australia's vast Nullarbor Plain could have been a tactile code for ancient Aboriginal flint miners



Higgs boson having an identity crisis

Six months on from its announcement, the mass and decay rates of the particle thought to be the Higgs boson are proving hard to pin down



Go forth and print: 3D objects you can print yourself

We pick our favourite objects to 3D-print, including a mathematical cookie cutter, a wormhole and a New Scientist holiday tree ornament inspired by fractals



Laser drills could relight geothermal energy dreams

High-powered lasers that can drill through igneous rocks may make reaching oil and geothermal sources much easier



Robots should be cleaning your home

Tech investor Dmitri Grishin explains why the time is right for sleek, versatile robots that will be our everyday helpers rather than factory equipment



Welcome to the personal drone revolution

Sophisticated, affordable drones could soon be so commonplace that they will become our personal servants, says Michael Brooks



Finding dangerous asteroids, before they find us

Near-Earth Objects: Finding them before they find us by Donald Yeomans is a fascinating tour guide of the asteroids we should worry about



World's loneliest bug turns up in Death Valley

A microbe that survives deep below Earth's surface without the sun's energy has reappeared, in California



Search for aliens poses game theory dilemma

The complex question of whether to risk contact with ET may be navigable with a new spin on the "prisoner's dilemma"



'Robot ecosystem' in sight as apps get a cash boost

The first company dedicated to investing in consumer robotics stakes $250,000 on robot apps



First results from James Cameron's trip to the abyss

It's not Pandora, but the Mariana trench holds life just as strange as that in James Cameron's film Avatar



UK government urged to consider relaxing drug rules

A parliamentary report calls for a fresh programme of research to monitor the effects of European drug legalisation




Read More..

EU leaders upbeat on euro future after deal on banks, Greece






BRUSSELS: EU leaders debated the euro's future in a bullish mood Thursday after deals on banks and Greece, despite fears that political uncertainty in Italy could cause new worries for the single currency.

As video showed the bloc's 27 leaders smiling and joking with each other at the beginning of a two-day summit, EU President Herman Van Rompuy said leaders should aim to cap a triumphant week that began with the European Union picking up the Nobel Peace Prize.

"We started the week well in Oslo. Let's finish it well here in Brussels with a further positive outcome," Van Rompuy said.

"The worst is now behind us, but of course much still needs to be done," he added as the leaders began deliberations on how to make the 17-nation eurozone more stable after a crippling three-year crisis.

The hero of the day was Italy's Prime Minister Mario Monti, hailed for tough reforms that have brought Italy back from the brink of financial collapse but who announced last weekend he would be stepping down.

"Confidence has been returning in Italy's capacity to solve problems," said European Commission chief Jose Manuel Barroso. "Let me praise Mario Monti and his government for this."

Jitters over Italy's political situation loomed over the summit, after Monti said he would soon step down and former leader Silvio Berlusconi indicated he might run for a fourth term.

But on the sidelines of the talks, Berlusconi hinted he might not put himself forward, telling Belgian television channel VRT that he had "so much to do" outside politics.

At the talks, leaders will debate a report drawn up by Van Rompuy that proposes steps towards greater economic integration in the eurozone, eventually with a common "fiscal capacity" and binding reform commitments.

Following on the heels of a summit only last month that collapsed over the EU's seven-year budget, the atmosphere was noticeably brighter after ministers sealed much-heralded agreements on supervising big banks and aid to Greece.

Greek Prime Minister Antonis Samaras exclaimed that "Grexit is dead", meaning the prospect of Greece leaving the euro currency area was no longer possible after ministers released bailout funds to avert bankruptcy.

After a buy-back programme designed to reduce Greece's debt mountain, Eurogroup head Jean-Claude Juncker said a first payment of 34.3 billion euros ($44.7 billion) would be flowing to Athens "as early as next week."

This instalment would go to help recapitalise Greece's crisis-wracked banks, to be followed by another 14.8 billion euros in the first quarter of next year.

An ecstatic Samaras, who has pushed through painful reforms demanded by creditors often in the face of violent protest, told reporters: "Greece is back on its feet. The sacrifices of the Greek people have not been in vain."

"Today is not only a new day for Greece, it is indeed a new day for Europe," he added.

"It is flying. It is happening"

Hours before the Greece deal, ministers charged the European Central Bank with monitoring banks with assets of more than 30 billion euros, or equal to 20 percent of a state's economic output from March 2014.

The agreement, which German Chancellor Angela Merkel said "cannot be valued highly enough", is the first step on the path towards a banking union and clears the way for EU bailout funds to recapitalise struggling banks directly.

Merkel called the move a "big step towards more reliability and trust in the eurozone."

The new Single Supervisory Mechanism (SSM) for the eurozone -- which Britain and Sweden will not take part in -- will mean the ECB directly supervising some 200 of the biggest banks out of the estimated 6,000 eurozone lenders.

ECB chief Mario Draghi hailed the accord as "an important step towards a stable economic and monetary union, and towards further European integration".

More excitedly, Barroso said: "You remember, when we spoke about this some time ago, people said it will not fly. It is flying. It is happening."

Merkel voiced some satisfaction as she looked back on a year of seemingly endless crisis summits, damaging market volatility and, at times, near break-up of the eurozone bloc.

"All in all, I want to state at the end of 2012 that we have achieved a lot. It was a very heavy year in terms of work but it was also a year in which we managed to make big progress," said the leader of Europe's biggest economy.

The head of the European Parliament, Martin Schulz, however complained that workers' rights had not been taken sufficiently into account.

"As the representatives of the people, we are annoyed that the social pact that we asked for has not been included in the report drawn up by Mr Van Rompuy," Schulz told reporters.

-AFP/ac



Read More..

Buy a TV now or wait?



Most new TV models are announced at the Consumer Electronics Show, held every January. It's usually a few months before they ship, arriving in stores sometime in the spring.


So with new models imminent, should you wait to buy a new TV? We break down what we expect to see, and figure out when is the best time to buy.



Upgrades?
When it comes to the new models, a direct replacement for what's out now, none of us TV tech pundits is expecting big changes. Incremental improvements have been the name of the game for several years.


We'll likely see a few more larger models, a few cheaper 3D and smart TV models, and a lot of single-digit number/letter changes with very similar spec sheets.


However, 2012 saw a nearly pervasive stagnation in picture quality from many manufacturers. On average, many "new" 2012 models didn't look any better than their 2011 counterparts. Some models looked a little worse. Are we seeing a trend of reducing the cost to build the TVs, at the expense of overall performance? We shall see. There were a few exceptions, of course.


New technologies
As David and Ty outlined in his CES expectations article, the two new technologies we're sure to hear about at
CES are OLED and 4K Ultra HD.


Ultra HD is actually available now, in 84-inch LED LCDs from LG and Sony. There's also a projector from Sony that came out last year, and several eShift "4K" projectors from JVC that use 1080p chips but optically upconvert to 4K resolution. Unless you're sitting really close to the TV, or want a really huge TV, you don't need 4K (though passive 3D with 4K is full-resolution 1080p and then some, which isn't the case with "normal" passive 3D HDTVs). Will we see other Ultra HD models at CES? Certainly. Smaller? Ugh, I hope not, but probably. If you're really excited about 4K, I'll actually say hold off till CES, because none of the current Ultra HD models will likely be compatible with the as-yet-unspecified Ultra HD standard. So at the very least, I'd wait to see what some new models might be.


As far as OLED is concerned, dammit, they were supposed to be out this year. OLED is fascinating, with far better picture quality than plasma or LCD, lower power consumption, and are even thinner than current TVs. Except...where are they! I'm sure we'll hear more about new models at CES. Or at least, we'd better.



Pricing
There are some pretty amazing pre-Christmas deals going on right now, and I'm sure we'll see even more after the new year, as TV companies and retailers try to empty their warehouses to make room for the immanent new models.


So should you wait for the yearly sales that happen right before the Super Bowl? Maybe. This year was the first in many that there weren't significant discounts on major brand televisions. Most of the tier-one manufacturers put in place draconian pricing rules that forbid retailers from dropping prices below a certain amount. So I suppose it's possible that there will be deeper discounts on certain models in late January, but if you're expecting the exact TV you're interested in to drop 50 percent in price, it's probably not going to happen.


And then there's price guarantees. Most stores will match a price up to 30 days after you buy it (though check the fine print). So if you are worried about pricing, but really want a TV under your Christmas tree/Festivus pole, buy from a store that will match a potential price drop. Your guess is as good as mine as when those sales will start, but expect mid-January.



Bottom line
My usual advice is to buy the TV you want, and not sweat about fluctuations in price or new models that might come out. It's inevitable that prices will drop, but those drops have become less severe in recent years. There will always be new models, but those new models aren't going to be radically different than what's out there right now.



If you're one of those people who has to wait in line to get the latest iWhatever, then you know what, go ahead and wait until CES (which means you'll actually need to wait until the new models ship in the spring but if you wait until the spring then what about the price drops at Christmas but if you wait till Christmas what about the new models at CES but if you wait till CES then you'll actually need to wait until the new models ship in the spring but if you...).


For everyone else, the 2013 models are going to be very, very similar to the 2012 models, probably not enough to justify waiting if you're interested in a TV now. That is, unless you really want Ultra HD or OLED, but I'm guessing most of you aren't going to wait until those reach reasonable prices to buy a new TV (cause that's going to be a looong wait).




Got a question for Geoff? Send him an e-mail! If it's witty, amusing, and/or a good question, you may just see it in a post just like this one. No, he won't tell you which TV to buy. Yes, he'll probably truncate and/or clean up your e-mail. You can also send him a message on Twitter: @TechWriterGeoff.


Read More..

Global Checkup: Most People Living Longer, But Sicker


If the world's entire population went in for a collective checkup, would the doctor's prognosis be good or bad? Both, according to new studies published in The Lancet medical journal.

The vast collaborative effort, called the Global Burden of Diseases, Injuries, and Risk Factors Study 2010, includes papers by nearly 500 authors in 50 countries. Spanning four decades of data, it represents the most comprehensive analysis ever undertaken of health problems around the world.

It reveals that, globally, we're living longer but coping with more illness as adults. In 1990, "childhood underweight"—a condition associated with malnutrition, measles, malaria, and other infectious diseases—was the world's biggest health problem. Now the top causes of global disease are adult ailments: high blood pressure (associated with 9.4 million deaths in 2010), tobacco smoking (6.2 million), and alcohol use (4.9 million).

First, the good news:

We're living longer. Average life expectancy has risen globally since 1970 and has increased in all but eight of the world's countries within the past decade.

Both men and women are gaining years. From 1970 to 2010, the average lifespan rose from 56.4 years to 67.5 years for men, and from 61.2 years to 73.3 years for women.

Efforts to combat childhood diseases and malnutrition have been very successful. Deaths in children under five years old declined almost 60 percent in the past four decades.

Developing countries have made huge strides in public health. In the Maldives, Bangladesh, Bhutan, Iran, and Peru, life expectancy has increased by more than 20 years since 1970. Within the past two decades, gains of 12 to 15 years have occurred in Angola, Ethiopia, Niger, and Rwanda, an indication of successful strategies for curbing HIV, malaria, and nutritional deficiencies.

We're beating many communicable diseases. Thanks to improvements in sanitation and vaccination, the death rate for diarrheal diseases, lower respiratory infections, meningitis, and other common infectious diseases has dropped by 42 percent since 1990.

And the bad:

Non-infectious diseases are on the rise, accounting for two of every three deaths globally in 2010. Heart disease and stroke are the primary culprits.

Young adults aren't doing as well as others. Deaths in the 15 to 49 age bracket have increased globally in the past 20 years. The reasons vary by region, but diabetes, smoking, alcohol, HIV/AIDS, and malaria all play a role.

The HIV/AIDS epidemic is taking a toll in sub-Saharan Africa. Life expectancy has declined overall by one to seven years in Zimbabwe and Lesotho, and young adult deaths have surged by more than 500 percent since 1970 in South Africa, Botswana, Zambia, and Zimbabwe.

We drink too much. Alcohol overconsumption is a growing problem in the developed world, especially in Eastern Europe, where it accounts for almost a quarter of the total disease burden. Worldwide, it has become the top risk factor for people ages 15 to 49.

We eat too much, and not the right things. Deaths attributable to obesity are on the rise, with 3.4 million in 2010 compared to 2 million in 1990. Similarly, deaths attributable to dietary risk factors and physical inactivity have increased by 50 percent (4 million) in the past 20 years. Overall, we're consuming too much sodium, trans fat, processed meat, and sugar-sweetened beverages, and not enough fruits, vegetables, whole grains, nuts, fiber, calcium, and omega-3 fatty acids.

Smoking is a lingering problem. Tobacco smoking, including second-hand smoke, is still the top risk factor for disease in North America and Western Europe, just as it was in 1990. Globally, it's risen in rank from the third to second leading cause of disease.

To find out more and see related charts and graphics, see the Institute for Health Metrics and Evaluation, which led the collaboration.


Read More..

NASA Debunks Mayan Doom, 10 Days Early


Dec 13, 2012 2:57pm







GTY mayan wblog Not Happening: NASA Debunks Mayan Doomsday Prophecy

Kukulkan pyramid, Yucatan, Mexico. Jeremy Woodhouse/Getty.


We’ll never know if they were wrong.


NASA has quietly published a web video explaining why the world did not come to an end “yesterday,” Dec. 21, 2012.


The date of its release, December 11, was no mistake, even if doomsayers would likely call it one last act of earthly hubris. NASA uploaded the four-minute “ScienceCasts” explainer, titled “Why the World Didn’t End Yesterday,” in an effort to answer hundreds of calls and emails they receive daily. It also has a dedicated website that’s received at least 4.6 million visitors — people asking if the Maya prophecy is coming true and what they should do about it.



“If there was anything out there, like a planet headed for Earth, said NASA Astrobiologist David Morrison, it would already be one of the brightest objects in the sky,” the narrator explains in a cheerfully pedantic voice. “Everybody on Earth could see it. You don’t need to ask the government, just go out and look. It’s not there.”


(Note: Still not convinced? Consider this: Even if the Maya, a declining Mesoamerican civilization wiped almost entirely off the map by 17th century Spanish conquistadors, are to be trusted with this kind of high-stakes stuff, scientists agree that reports concerning their prediction of our collective demise have been greatly exaggerated, if not fabricated. Anthropologists say the Mayan calendar was cyclical, and frequently restarted without ending.)


As for rumors about solar flares and reports the sun is reaching the “max of its 11-year solar cycle,” well, that’s all true. But NASA calls is it the “wimpiest cycle” of the past 50 years.


Anyway, “the sun has been flaring for billions of years and it has never, once, destroyed the world.”


Dwayne Brown, a senior public affair officer at NASA, said the space agency felt a sense of duty as the date neared. People have been calling in to headquarters “who want to do harm to their families” in an effort to protect them from the unknown horrors expected to arrive with the Maya apocalypse, he said.


“As the attention on the issue is growing,” the video’s producer and director Michael Brody said, “we didn’t want the rumors growing…. The idea is to take a straight, stoic, standard [scientific] look… and give it a hook.”


“You’re the smart guys, you know what’s up in space,” Brown said, his way of distilling public sentiment toward NASA.  “Well, we do!”


READ: Apocalypse Believers Flocking Here: Why?


And what they know is quite simple. The world might end on a Friday, but it won’t be tomorrow or the one after. Most scientists agree we have about five billion years of battery life, in the form of the sun, to go before the time comes to get nervous.


Brown’s best advice: “Let’s take it day-by-day.”



SHOWS: World News







Read More..

UK government urged to consider relaxing drug rules



































JUST say yes to considering relaxed drug controls, urged a panel of UK parliamentarians this week - but Prime Minister David Cameron has rejected the calls.











Many countries have loosened their penalties for drug use, including the Czech Republic and Portugal, which introduced a "de-penalisation" strategy in 2000. Citizens caught in possession avoid criminal records but must attend drug advice sessions. Last month, the US states of Colorado and Washington voted to legalise the recreational use of cannabis.













The UK report calls for the effects of these legal moves to be monitored. "Drugs policy ought to be evidence-based as much as possible," it concludes. "We recommend that the government fund a detailed research project to monitor the effects of each legalisation system."












The report notes that 21 countries have now introduced some form of decriminalisation. But the government's response has been lukewarm. "I don't support decriminalisation," said Cameron. "We have a policy which actually is working in Britain. Drugs use is coming down."
























































If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.









































































All comments should respect the New Scientist House Rules. If you think a particular comment breaks these rules then please use the "Report" link in that comment to report it to us.


If you are having a technical problem posting a comment, please contact technical support.








Read More..

Clashes as Argentines outraged by sex slavery case






BUENOS AIRES: Angry Argentines clashed with police and smashed windows and politicians voiced outrage on Wednesday after a court acquitted 13 people charged with running a sex slavery ring.

Demonstrators furious over the legal ruling took to the streets of the capital and in at least seven provinces, including Tucuman in the north, where a court announced the acquittal Tuesday.

Susana Trimarco, an activist who personally freed many sex slaves as she searched for her missing daughter Marita Veron, spoke with President Cristina Kirchner, who was among those angered by the verdict. Veron is believed to be among the victims of the sex ring.

"I had a call from the president and she was shouting 'I cannot believe it. I cannot believe it'," she said.

"Even the wife of President (Barack) Obama voiced her support to me. I thank her from the bottom of my heart and assured her that we are not going to stop fighting," she added, referring to the US first lady, Michelle Obama.

In Buenos Aires, demonstrators gathered outside the local office representing Tucuman province threw rocks and other heavy objects at the windows, smashing them.

In Tucuman itself, where Veron went missing a decade ago, a large procession of people marched with a banner that read, "Justice for Marita."

In 2008, Trimarco's tireless campaign won a toughening of sentences for those convicted of sex trafficking, but she has yet to find her daughter, who vanished in 2002 at the age of 23.

Trimarco and fellow campaigners believe that Marita is among the victims of an alleged sex ring in Tucuman province in northern Argentina. But on Tuesday a court in Tucuman found the suspects not guilty.

The verdict triggered national outrage, and protest groups called for marches in cities around the country.

"The court system does not understand the system of people trafficking," lamented Zaida Gatti, who leads the state-run National Program to Rescue People Harmed by Trafficking Crimes.

Trimarco's attorney Jose D'Antona said he planned to seek the impeachment of the members of the court.

A disappointed Kirchner, a lawyer herself by training, said she hoped more "democratization" could be brought to Argentina's court system.

"I thought that I would find her devastated," the president said after her phone call to Trimarco. "But I found her more calm and centered than ever, and more determined to keep on fighting."

As recently as Sunday, the president had honored Trimarco, already a recipient with similar prizes in the United States and Canada, with a human rights award for her work.

Socialist Hermes Binner, who ran against Kirchner, told reporters "Susana Trimarco's lonely fight is in stark contrast with the impunity in the Marita Veron case."

Prosecutors in Tucuman had sought between 12 to 25 years in jail for those accused in the case. The grounds for the court ruling were not immediately made public.

"Let us build a commitment to change out of our outrage at this ruling," urged Ricardo Alfonsin, another former presidential candidate, with the Radical Civic Union.

Ruling party Senator Beatriz Rojkes, who represents Tucuman and is married to its Governor Jose Alperovich, said she was "emotional and surprised" but added that "prostitution exists, and it will always exist."

A saddened Trimarco told reporters: "we are not fighting against prostitution. We are fighting against the trafficking of women."

-AFP/ac



Read More..

Video teases latest major effort to jailbreak Apple's iOS 6





A promotional image teasing the release of the first untethered jailbreak for iOS 6.



(Credit:
Dream Jailbreak)


Even if the world doesn't end on December 21, things might go a bit sour for Apple the day after.

An unidentified hacker behind a hack called Dream Jailbreak posted video evidence this evening of something countless iPhone,
iPad, and
iPod Touch owners greatly desire: an untethered
iOS 6 jailbreak -- software that lets users gain deep access to their device without fear of losing it all after rebooting. It appears to be the first of its kind for Apple's latest iteration of the operating system.

In the proof-of-concept video, the hacker connects his iPhone 5 to a computer via USB; accesses a Web site through Safari (the identity of the site is blurred in the vid); and then runs an application called Dream (coming to Windows and Mac) on his computer. After a few flashes of code, the iPhone 5 reboots with popular third-party app and code installer Cydia in place and a world of third-party software just a tap away.

Many consider the untethered jailbreak to be a gold standard. In contrast, a tethered jailbreak, the only hack available for iOS 6 at this time, requires you to connect the iDevice to the computer via USB every time you restart it. Cumbersome.


The Dream Jailbreak site notes that the hack works for "iPhone 3GS, iPhone 4, iPhone 4S, iPhone 5, iPad (Gen 2 and beyond), iPad Mini, iPod Touch (Gen 4 and beyond)." From the looks of his various handles, the hacker responsible for it appears to be new to the iOS hack scene but runs a handy Dream Jailbreak Web site, Twitter account, and FAQ to keep people in the loop.




A preview of the Dream application for Windows and PC -- supposedly needed to complete a successful untethered iOS 6 jailbreak.



(Credit:
Dream Jailbreak)


Interest in the subject hit frenzied levels today as the hacker announced the jailbreak video on Twitter and received more than 500 comments on YouTube in less than 15 minutes, with many dozens more added by the minute.

The feedback provided an interesting view into the psyche of Apple fanatics and naysayers: the tone on the video page quickly escalated with excitement as people chanted for the video to finish processing so they could view it. After the video went live, people started fighting over whether it was real. However, the observable consensus majorly sounded off that the video appeared authentic. (In my experience of observing more than a dozen iPhones being jailbroken using various methods, the process shown on video looks legitimate.)


Unfortunately, the supposed release date for this major iOS 6 hack might concern those adhering to the Mayan prophecies. The public download supposedly goes live on the day after doomsday -- December 22.

Read More..

Gold “Mining” Termites Found, May Lead Humans to Riches


Want to know if you're literally sitting on a gold mine? Get some termites, a new study suggests.

New experiments in West Australia reveal that termites "mine" and stockpile the precious metal while they're collecting subterranean material for their nests.

For the study, entomologist Aaron Stewart, with Australia's Commonwealth Scientific and Industrial Research Organisation, and colleagues took samples from several termite nests and compared the nest material to nearby soil samples from varying depths.

By using a mass spectrometer—an instrument that measures molecules' chemical makeup—they discovered that the termite nests were richer in gold than termite nests farther away from the metal, Stewart said in an email. (Also see "Battling Termites? Just Add Sugar.")

"That social insect colonies can selectively accumulate metals from their environment has been known for some time," Robert Matthews, a professor emeritus of entomology at the University of Georgia, noted by email.

"Some have even suggested that ant and termite nests could be analyzed productively when searching for potential mining sites for precious metals" such as gold, he said.

Those are Stewart's thoughts exactly. Gold deposits are usually hidden a few meters below the surface, making them tough for people to locate. But insects could essentially act as indicators of this buried treasure, said Stewart, whose study appeared recently in the journal Geochemistry: Exploration, Environment, Analysis.

"Drilling is expensive. If termites can help narrow down the area that needs to be drilled, then exploration companies could save a lot of money."

Termites Worth Their Waste in Gold?

In a related study published in 2011 in PLoS ONE, Stewart and his colleagues set out to find if termites, like many animals, accumulated metals within their bodies—potentially another way to pinpoint valuable mineral deposits.

Just as mammals accumulate calcium to maintain bones, some insects stockpile zinc and magnesium to harden their exoskeleton, particularly their jaws. Metals such as zinc act to reinforce those body parts.

But insects are also really good at excreting metals they do not need or that are toxic to them, Stewart noted. For example, insects shed metal either during molting or as tiny stones, much like kidney stones in humans. (Also see "Rock-Eating Bacteria 'Mine' Valuable Metals.")

When Stewart started to investigate insect excretory systems, he made a "fascinating" discovery that certain organs in the termite's excretory system contain varying amounts of metals-hinting at unknown processes going on inside the termite. That's important, he said, because it means that termite waste is a "driving force" for how metals get redistributed in an ecosystem.


Read More..