Deformed Dolphin Accepted Into New Family

In 2011, behavioral ecologists Alexander Wilson and Jens Krause of the Leibniz-Institute of Freshwater Ecology and Inland Fisheries in Germany were surprised to discover that a group of sperm whales (Physeter macrocephalus)—animals not usually known for forging bonds with other species—had taken in an adult bottlenose dolphin (Tursiops truncatus).

The researchers observed the group in the ocean surrounding the Azores (map)—about 1,000 miles (1,600 kilometers) off the coast of Lisbon, Portugal—for eight days as the dolphin traveled, foraged, and played with both the adult whales and their calves. When the dolphin rubbed its body against the whales, they would sometimes return the gesture.

Among terrestrial animals, cross-species interactions are not uncommon. These mostly temporary alliances are forged for foraging benefits and protection against predators, said Wilson.

They could also be satisfying a desire for the company of other animals, added marine biologist John Francis, vice president for research, conservation, and exploration at the National Geographic Society (the Society owns National Geographic News).

Photographs of dogs nursing tiger cubs, stories of a signing gorilla adopting a pet cat, and videos of a leopard caring for a baby baboon have long circulated the Web and caught national attention.

A Rare Alliance

And although dolphins are known for being sociable animals, Wilson called the alliance between sperm whale and bottlenose dolphin rare, as it has never, to his knowledge, been witnessed before.

This association may have started with something called bow riding, a common behavior among dolphins during which they ride the pressure waves generated by the bow of a ship or, in this case, whales, suggested Francis.

"Hanging around slower creatures to catch a ride might have been the first advantage [of such behavior]," he said, adding that this may have also started out as simply a playful encounter.

Wilson suggested that the dolphin's peculiar spinal shape made it more likely to initiate an interaction with the large and slow-moving whales. "Perhaps it could not keep up with or was picked on by other members of its dolphin group," he said in an email.

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But the "million-dollar question," as Wilson puts it, is why the whales accepted the lone dolphin. Among several theories presented in an upcoming paper in Aquatic Mammals describing the scientists' observations, they propose that the dolphin may have been regarded as nonthreatening and that it was accepted by default because of the way adult sperm whales "babysit" their calves.

Sperm whales alternate their dives between group members, always leaving one adult near the surface to watch the juveniles. "What is likely is that the presence of the calves—which cannot dive very deep or for very long—allowed the dolphin to maintain contact with the group," Wilson said.

Wilson doesn't believe the dolphin approached the sperm whales for help in protecting itself from predators, since there aren't many dolphin predators in the waters surrounding the Azores.

But Francis was not so quick to discount the idea. "I don't buy that there is no predator in the lifelong experience of the whales and dolphins frequenting the Azores," he said.

He suggested that it could be just as possible that the sperm whales accepted the dolphin for added protection against their own predators, like the killer whale (Orcinus orca), while traveling. "They see killer whales off the Azores, and while they may not be around regularly, it does not take a lot of encounters to make [other] whales defensive," he said.

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Feinstein Proposes Assault Weapons Ban

Manuel Balce Ceneta/AP Photo

With an AR-15 and nine other guns on her left, Sen. Dianne Feinstein, D-Calif., introduced a bill today that would ban assault weapons and high capacity ammunition clips.

The bill comes nearly 20 years after the first assault weapons ban was signed into law.

“I remain horrified by the massacre committed at Sandy Hook Elementary School in Newtown, Conn., and I’m also incensed that our weak gun laws allow these mass killings to be carried out again and again and again,” said Feinstein, who was joined by senators, representatives, mayors, police officials and victims of gun violence. “Military-style assault weapons have but one purpose, and in my view that’s a military purpose, to hold at the hip, possibly, to spray fire to be able to kill large numbers.”

“Assault weapons were designed for and should be used on our battlefields, not on our streets,” Sen. Charles Schumer, D-N.Y., said. “We know that there is no inalienable right to own and operate 100-round clips on AR-15 assault rifles.”

Feinstein’s proposed plan, which she will formally introduce on the Senate floor this afternoon, will ban the sale, transfer, manufacturing and importation of 158 semi-automatic weapons with at least one military feature. It would also ban fixed magazines that are capable of holding more than 10 rounds.

The newly bill differs from the 1994 assault weapons ban in that it does not have a sunset provision. Feinstein said the bill will protect over 2,200 makes of hunting and sporting rifles and shotguns, and the bill will subject existing or grandfathered weapons to background checks if they are sold or transferred.

“We have tried to learn from the bill. We have tried to recognize legal hunting rights. We have tried to recognize legal defense rights. We have tried to recognize the right of a citizen to legally possess a weapon. No weapon is taken from anyone. The purpose is to dry up the supply of these weapons over time. Therefore, there is no sunset on this bill,” Feinstein said.

Feinstein acknowledged the difficulty lawmakers face in passing this bill through Congress.

“Getting this bill signed into law will be an uphill battle, and I recognize that,  but it’s a battle worth having,” Feinstein said. “We must balance the desire of a few to own military-style assault weapons with the growing threat to lives across America.”

The National Rifle Association said Feinstein’s plan infringes on second amendment rights and neglects to address other issues spurring gun violence.

“Senator Feinstein has been trying to ban guns from law-abiding citizens for decades. It’s disappointing but not surprising that she is once again focused on curtailing the Constitution instead of prosecuting criminals or fixing our broken mental health system. The American people know gun bans do not work and we are confident Congress will reject Senator Feinstein’s wrong-headed approach,” Andrew Arulanandam, spokesman for the NRA, told ABC News.

Feinstein’s office told ABC News that the senator worked with U.S. Capitol Police and Washington Metro Police to ensure the display of weapons at the press conference complied with the rules.

An ABC News-Washington Post poll released last week found that 65 percent of those polled supported banning high capacity ammunition magazines while 58 percent favored banning the sale of so-called assault weapons.

Last week, President Obama introduced his gun policy agenda, which called for the banning of some assault-style weapons and high capacity magazines holding over ten rounds.  The president’s plan included 23 executive actions on gun violence that would not require congressional approval, which included a directive for national agencies to strengthen the criminal background check system.

A new ABC News-Washington Post poll out today showed 53 percent find the president’s gun control plan to be favorable while 41 percent view it unfavorably.

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Football: Giroud fires five-star Arsenal in Hammers rout

LONDON: Olivier Giroud helped Arsenal silence their critics as the France striker's double inspired a much-needed 5-1 victory over West Ham on Wednesday.

Arsene Wenger's side had been subjected to scathing criticism from fans and pundits after successive defeats against Manchester City and Chelsea seriously damaged their bid to finish in the Premier League's top four.

Wenger was reported to have held crisis talks with his players this week and the Gunners looked set to hit a new low when Jack Collison gave West Ham a shock first-half lead at the Emirates Stadium.

But Arsenal bounced back in emphatic fashion, equalising through Lukas Podolski and then taking the points after Giroud sparked an astonishing spree of four goals in 10 second-half minutes, with Santi Cazorla and Theo Walcott on the scoresheet before Giroud completed the rout.

Arsenal remain in sixth place but their first league win in four matches moves them within four points of fourth-placed Tottenham in the race to qualify for the Champions League.

It was a remarkable turnaround after Wenger's team were initially caught cold in the freezing conditions.

The trademark of every Sam Allardyce side is an ability to cause chaos from set-pieces and West Ham are no different. When Carlton Cole's header was only half-cleared, Matt Taylor pounced to fire in a volley that deflected just over.

Arsenal had been warned but, given their defensive frailties this season, it was no surprise they didn't learn the lesson as West Ham took the lead in the 18th minute.

Giroud, attempting to head clear a corner, could only reach the edge of the penalty area, where Collison, left completely unmarked, had time and space to control and lash a fierce strike past Wojciech Szczesny.

Often accused of lacking the character to deal with that kind of momentum-changing moment, Wenger's players for once showed impressive spirit and hit straight back to equalise within four minutes.

Cazorla and Jack Wilshere were the architects, working the ball across midfield to Germany forward Podolski, who advanced unchecked before drilling a long-range strike past Jussi Jaaskelainen for his 11th goal of the season.

Arsenal's back four continued to give West Ham hope with their nervous play and Cole took advantage to flick his shot over Szczesny, only for Aaron Ramsey to clear off the line.

That was a crucial moment as Wenger's men turned the tables on West Ham with a set-piece goal two minutes into the second half when Giroud, stretching to reach Walcott's corner, poked his shot past Jaaskelainen at the near post.

There was no stopping the Gunners as they swept forward with the imagination and determination which has been missing far too often this season.

First, in the 53rd minute, Podolski played a one-two with Giroud that took him into the penalty area in space to clip a cross to Spanish midfielder Cazorla, who showed tremendous skill to back-flick the ball into the net from close range with the inside of his foot.

Then one minute later Podolski raced into the space behind out-of-position Hammers right-back Guy Demel and whipped over a low cross that England winger Walcott met with a clinical finish at the far post.

Arsenal weren't done yet and, in the 57th minute, Podolski, again exploiting Demel's wayward positioning, had space to pick out Giroud, who timed his run perfectly to meet the German's cross with a first-time strike past Jaaskelainen.

To make matters worse for West Ham, they finished with 10 men after young defender Daniel Potts was stretchered off when Allardyce had already used all of his substitutes.

- AFP/jc

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Yet another case filed against Owaisi

KARIMNAGAR/Adilabad: Yet another case has been filed against MIM legislator Akbaruddin Owaisi. The Karimnagar Three Town police registered a case late on Tuesday night against Akbar for allegedly delivering a hate speech on 22 October, 2012 at the Arts College grounds.

Circle inspector C Vijaya Raj said the case was registered as per the directions of the Ist additional judicial magistrate Kshamadesh Pande. BJP urban party secretary and advocate Beti Mahender Reddy filed a private petition in the Ist additional judicial court and the judge allowed the petition directing the police to register a case against Akbaruddin under IPC sections 121, 121-A, 124-A, 153-A, B, 295 -A, 298 and 500.

Meanwhile, Akbaruddin's bail petition in the Nirmal court has been posted to Thursday for further hearing. District sessions court magistrate A Venkateshwar Reddy heard the arguments on Wednesday.

Akbaruddin was arrested on January 8 and remanded in judicial custody in connection with an alleged hate speech. , moved a bail petition on January 16. The Judge had posted the matter for Wednesday for hearing the arguments.

Arguing that the government was acting unlawfully against his client, Akbaruddin's lawyer Niranjan Reddy said the MLA had been falsely implicated in the case and urged the court to grant bail to his client and direct the police to withdraw the cases.

Terming it as a clear case of conspiracy hatched by the state government to implicate him in the case, the MLA's counsel sought to know why the case was registered on January 2 if Akbaruddin delivered the inflammatory speech on December 22.

He said there was a provision in the law for granting bail to an accused who was suffering from health problems. He appealed to the judge to sanction bail to his client based on his medical reports produced in the court.

Praveen Rao, who argued on behalf of the government, informed the court that since the investigations on the case had not been completed, Akbaruddin might manipulate evidence if he was sanctioned bail.

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10 Ways Obama Could Fight Climate Change

One of the biggest surprises of President Barack Obama's inaugural address on Monday was how much he focused on fighting climate change, spending more time on that issue than any other.

"We will respond to the threat of climate change, knowing that the failure to do so would betray our children and future generations," Obama said.

The President pointed out that recent severe weather supplied an urgent impetus for energy innovation and staked the nation's economic future on responding to a changing climate.

"We cannot cede to other nations the technology that will power new jobs and new industries—we must claim its promise," Obama said. "That's how we will maintain our economic vitality and our national treasure—our forests and waterways; our croplands and snowcapped peaks. That is how we will preserve our planet, commanded to our care by God."

So what could the President reasonably do to deliver on that vow? National Geographic asked experts in climate research, energy innovation, and oceanography. Here are ten of their suggestions:

1. Sunset coal with new incentives and regulations. "Provide incentives to phase out the oldest, most polluting power plants," said Robert Jackson, a climate scientist at Duke University. It's already happening, to some degree, as more of the nation transitions to natural gas. Earth scientist Bill Chameides, dean of Duke's Nicholas School of the Environment and a former chief scientist at the Environmental Defense Fund, urges the administration to use its Clean Air Act authority to promulgate carbon regulations for existing power plants like it has for new ones: "Doing that will force fuel switching from coal to natural gas." (Related: "6 Ways Climate Change Will Affect You.")

2. Invest federal stimulus money in nuclear power. It's hardly a perfect fuel, as accidents like Japan's Fukushima fallout have shown, but with safety precautions new nuclear plants can meaningfully offset dirtier types of energy, supporters say. "Nuclear is the only short- to medium-term way to really get away from fossil fuels," said Peter Raven, president emeritus of the Missouri Botanical Garden. He said the damage done by relentless global warming will far exceed the damage done by faults in the nuclear system.

3. Kill the Keystone pipeline. The controversial Keystone XL oil pipeline is up for review again by the White House this year. "The first thing he should do to set the tone to a lower carbon economy is to reject the Keystone pipeline," said Raymond Pierrehumbert, a geophysical scientist at the University of Chicago. The pipeline was never going to be a major driver of global emissions, but Pierrehumbert and some other environmentalists say that by killing it the President would send a clear message about America's intent to ramp down fossil fuels. (See pictures of the animals that helped kill the Keystone pipeline.)

4. Protect the oceans by executive order. Land use is complicated, but large swaths of oceans can be protected by executive fiat. Just as President George W. Bush designated the world's largest marine monument northwest of Hawaii in 2006, Obama could single-handedly protect other areas. National Geographic Explorer-in-Residence Sylvia Earle said the President should focus on parts of the Arctic that are under U.S. control, putting them off limits to energy production, commercial fishing, and mineral exploration. Marine sanctuaries won't stop climate change, but they can give marine species a better chance of adapting to it by reducing the other man-made threats the animals face. (Read about the many benefits of marine reserves.)

5. Experiment with capturing carbon. Huge untapped reserves of natural gas and oil make it unlikely that the U.S. will transition away from fossil fuels in the immediate future. Instead, said Wallace Broecker, geology professor at Columbia University's Lamont-Doherty Earth Observatory, we should attack the atmosphere's carbon surplus directly. "[Obama] could make available funds to build and test prototype air capture units" to capture and store CO2, said Broecker. Removing some carbon from the atmosphere could buy valuable time as policy makers and scientists explore more permanent solutions.

6. Grow government research for new energy sources. The Department of Energy has a nimble program that's tasked with innovative energy research—the Advanced Research Projects Agency-Energy. The ARPA-E funds research in biofuels, transmission, and battery storage, with an annual budget of $275 million. Last year, DOE officials requested at least $75 million more. Increasing funding for ARPA-E, said Rafe Pomerance, former deputy assistant secretary of state for environment and development and currently an environmental consultant, "you get new technologies that undercut coal, oil, and gas." Plus, he said, you get a competitive advantage if American researchers uncover the next big idea in new energy.

7. Tax carbon. Congress would have to agree, but many climate experts say that the most meaningful way to tackle emissions is to set a price on carbon. "We should be asking people to pay the cost of putting carbon into the atmosphere as they buy the fuel," said Josh Willis, climate scientist and oceanographer at NASA's Jet Propulsion Laboratory. To gain political support for the idea, Obama would probably have to show that the tax would help accelerate technology, grow new industries, and pay down the deficit.

8. Dial back the federal government's energy use. With more than 1.8 million employees, $500 billion in annual purchasing power, and 500,000 buildings to operate, the federal government has been a leader in reducing energy use since Obama signed a 2009 executive order to cut waste. "I would urge him to keep using the power of government to promote energy conservation," said Syndonia Bret-Harte, an Arctic biologist who studies climate change at the University of Alaska, Fairbanks.

9. Build a scientific clearinghouse for climate information. "I advocate for building a better information system on what is happening and why," said Kevin Trenberth, head of the Climate Analysis Section at the U.S. National Center for Atmospheric Research. That involves compiling observations related to climate change from around the world and using the data to refine climate modeling. Think of it as a one-stop, user-friendly website that clearly demonstrates how weather data from around the globe are influenced by broader shifts in the planet's climate.

10. Keep talking. Despite a consensus among top scientists, the world still needs some convincing on climate change. A CNN poll last week found that just 49 percent of Americans agree that global warming is real and is due to human activities. "The most important thing the President can do is to build on his inaugural comments to heighten the sense of urgency about rapid climate destabilization and clarify its connection to virtually every other issue on the national agenda," said David Orr, environmental studies professor at Oberlin College. That means using the bully pulpit to show how a more volatile climate affects everything from agriculture to transportation to 21st-century warfare.

Christine Dell'Amore, Rob Kunzig, and Jane J. Lee contributed reporting.

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Pentagon to Allow Women in Combat

Defense Secretary Leon Panetta will lift a longstanding ban on women serving in combat, according to senior defense officials.

The services have until this May to come up with a plan to implement the change, according to a Defense Department official.

That means the changes could come into effect as early as May. The services will have until January 2016 to complete the implementation of the changes.

The military services will also have until Janurary 2016 to seek waivers for certain jobs -- but those waivers will require a personal approval from the secretary of defense and will have to be based on rationales other than the direct combat exclusion rule.

The move to allow women in combat, first reported by the Associated Press, was not expected this week, although there has been a concerted effort by the Obama administration to further open up the armed forces to women.

The Joint Chiefs of Staff unanimously recommended in January to Secretary Panetta that the direct combat exclusion rule should be lifted.

"I can confirm media reports that the secretary and the chairman are expected to announce the lifting of the direct combat exclusion rule for women in the military," said a senior Defense Department official. "This policy change will initiate a process whereby the services will develop plans to implement this decision, which was made by the secretary of defense upon the recommendation of the Joint Chiefs of Staff."

Chairman of the Joint Chiefs Gen. Martin Dempsey sent Panetta a memo earlier this month entitled, "Women in Service Implementation Plan."

"The time has come to rescind the direct combat exclusion rule for women and to eliminate all unnecessary gender-based barriers to service," the memo read.

Adek Berry/AFP/Getty Images

"To implement these initiatives successfully and without sacrificing our warfighting capability or the trust of the American people, we will need time to get it right," he said in the memo, referring to the 2016 horizon.

Women have been officially prohibited from serving in combat since a 1994 rule that barred them from serving in ground combat units. That does not mean they have been immune from danger or from combat.

As Martha Raddatz reported in 2009, women have served in support positions on and off the frontlines in Iraq and Afghanistan, where war is waged on street corners and in markets, putting them at equal risk. Hundreds of thousands of women deployed with the military to those two war zones over the past decade. Hundreds have died.

READ MORE: Female Warriors Engage in Combat in Iraq, Afghanistan

Woman have been able to fly combat sorties since 1993. In 2010, the Navy allowed them on submarines. But lifting restrictions on service in frontline ground combat units will break a key barrier in the military.

READ MORE: Smooth Sailing for First Women to Serve on Navy Submarines

READ MORE: Female Fighter Pilot Breaks Gender Barriers

Panetta's decision will set a January 2016 deadline for the military service branches to argue that there are military roles that should remain closed to women.

In February 2012 the Defense Department opened up 14,500 positions to women that had previously been limited to men and lifted a rule that prohibited women from living with combat units.

Panetta also directed the services to examine ways to open more combat roles to women.

However, the ban on direct combat positions has remained in place.

Advocates for equality in the services will be pleased. On Capitol Hill today, retired Chief Master Sgt. Cindy McNally, a victim of sexual assault in the military, said placing women in combat roles would help equalize the services and actually cut down on sexual assaults, which have emerged as a major problem in the military.

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At State, you lose some, you keep some

A major opening at the State Department: We’re hearing that highly regarded Deputy Secretary of State
Tom Nides
has decided to decline Secretary-designate Sen. John F. Kerry’s offer that he stay on for up to a year for the transition.

Nides, the deputy secretary for management, apparently told Kerry on Friday that he wanted to move on after two years on the job and would leave in February.

It’s not clear whether Nides, who had also been on the short list to be President Obama’s chief of staff, has anything lined up for when he leaves. Maybe a bit of down time? Before you break out the checkbooks to tide him over, let’s review his résumé.

After working as chief of staff for then-House Speaker Tom Foley and with a similar title at the U.S. Trade Representative’s office in 1993, Nides worked at Fannie Mae, then was president and chief executive officer of Burson-Marsteller, then CEO of Credit Suisse First Boston and chief operating officer of Morgan Stanley. So he should be okay for a while.

The department’s other deputy secretary,
Bill Burns
, has agreed to stay to help with the transition. And we’re hearing that a substantial number of senior officials are also willing to extend. (One State official said they were “digging in,” but that seems a bit unkind.)

Meanwhile, some ambassadorships, including a few of the most highly prized, appear to be headed to some of the top Obama bundlers and contributors.

As we’ve written,
Matthew Barzun
, Obama’s 2008 finance chairman, then ambassador to Sweden and again Obama’s 2012 finance chairman, is the odds-on favorite to become the ambassador to the Court of St. James’s, a.k.a. Britain.

John Emerson, a former Clinton White House aide and in recent years a Los Angeles mega-fundraiser for Democrats and Obama, is said to be a leading contender for Germany.

Another major bundler and contributor,
Marc Lasry
, who’s the chairman and CEO of the hedge fund Avenue Capital Group, is being talked about for Paris.

And local lawyer and huge bundler and contributor
John Phillips
is the leading pick for Rome. (Yes, the Loop was passed over once again.) Phillips’s wife,
Linda Douglass
, is a former longtime ABC news correspondent, Obama 2008 campaign aide and then the administration’s chief health-care spokeswoman. She is now head of corporate and strategic communications for the Atlantic.

Phillips, who has been eyeing that Rome post for a while, happens to own what some call a town — really just a village — in Tuscany. The ambassador’s residence in central Rome, Villa Taverna, is a great sprawling house set in a lovely garden complete with swimming pool, tennis court and fountains.

It’s certainly on a par, we’re told by someone who’s stayed there, with Borgo Finocchieto, Phillips’s mountaintop village, with a manor house and four villas on six acres. Also a pool, a tennis court and a staff of 19.

Well, it takes a village.

Another Udall at Interior?

So much for a short list. Add another name to the possible candidates for interior secretary, a post that will be vacant when Ken Salazar departs the agency in March: Sen. Tom Udall
(D-N.M.)

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Justin Bieber overtakes Lady Gaga in Twitter follower race

 

By mid-day, the Biebs had 33,342,299 followers, against 33,333,682 for the Mother Monster, followed by Katy Perry, Rihanna and, a day after his public second-term inauguration, President Barack Obama with 26,183,711 followers.

Last week Twitter Counter had forecasted that, according to its algorithms, Bieber would clinch first place last Sunday.

Bieber and Lady Gaga -- who had led the Twitter pack since 2010 when she outpaced Britney Spears for the top spot -- are currently on tour in the United States.

"So proud of @justinbieber and all the Beliebers!" Lady Gaga graciously tweeted her Canadian-born rival last week. "I'm only happy to see your fans growing in size, you all deserve it! Monsters support you!"

- AFP/jc

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EC suggests to Justice Verma panel to penalize MLAs filing false affidavits

NEW DELHI: The Election Commission (EC), in its suggestions to the Justice J S Verma committee tasked with reviewing the anti-rape laws, has proposed that legislators found to have filed false affidavits with their nomination papers, should be immediately disqualified and punished with imprisonment upto two years.

The EC, whose representatives appeared before the Verma panel on Saturday, sought a tougher punishment for those getting elected on the basis of false affidavits, arguing that withholding or furnishing of false information, particularly regarding a candidate's criminal history that could include rape and murder, amounted to misleading the voters. "A six-month imprisonment is hardly a deterrent; there is an urgent need to enhance it to two years, besides providing for disqualification," the deputy election commissioner and legal advisor appearing on EC's behalf told the panel.

As per Section 125(A) of the Representation of People Act, 1951, furnishing of false information by a candidate in his poll affidavit is an offence punishable with a prison sentence of six months or with fine.

The J S Verma panel - set up in the wake of the brutal gang-rape of Nirbhaya here on December 16 - will submit its report on Wednesday, keeping its one-month deadline for suggesting ways to tighten the legal framework against rape.

Incidentally, though the EC's suggestions to the Verma panel were not specific to rape crimes and dealt with criminalization of politics in general, the panel used the interaction to pitch for a tougher regime to deal with MPs/MLAs convicted for serious crimes.

The EC reiterated its long-standing suggestion for disqualification of a legislator against whom charges have been framed by a court for an offence punishable with imprisonment of five years or more.

To guard against politically-motivated cases, the EC representatives suggested that only cases where charges have framed six months prior to an election be taken into account.

Under Section 8 of the Representation of People Act, 1951, disqualification follows if an elected representative is convicted and sentenced to imprisonment of two years or more.

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Space Pictures This Week: Solar Tantrum, Petroglyphs at Night

Photograph by Tony Rowell, Your Shot

This image of Native American petroglyphs, or rock art, shot against the Milky Way, was taken in California's eastern Sierra Nevada on January 14.

Petroglyphs—one of many forms of rock art—are created by scraping, rubbing, or chiseling designs into the patina coating desert rocks. Depending on the conditions surrounding a piece of rock art, these designs can endure for hundreds to thousands of years. (Watch a video about Arizona's rock art.)

Erosion and natural processes, such as plant growth, can fade or destroy the designs. They can also fall victim to vandalism and theft.

According to news reports, one of the most recent incidences was discovered in late October 2012. Unknown perpetrators hacked six petroglyphs out of the cliff face at the Eastern Sierra Volcanic Tableland near Bishop, California (map). They damaged others using saws and hammers.

Published January 22, 2013

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