Why African Rhinos Are Facing a Crisis

The body count for African rhinos killed for their horns is approaching crisis proportions, according to the latest figures released by the International Union for Conservation of Nature (IUCN).

To National Geographic reporter Peter Gwin, the dire numbers—a rhinoceros slain every 11 minutes since the beginning of 2013—don't come as a surprise. "The killing will continue as long as criminal gangs know they can expect high profits for selling horns to Asian buyers," said Gwin, who wrote about the violent and illegal trade in rhino horn in the March 2012 issue of the magazine.

The recent surge in poaching has been fueled by a thriving market in Vietnam and China for rhino horn, used as a traditional medicine believed to cure everything from hangovers to cancer. Since 2011, at least 1,700 rhinos, or 7 percent of the total population, have been killed and their horns hacked off, according to the IUCN. More than two-thirds of the casualties occurred in South Africa, home to 73 percent of the world's wild rhinos. In Africa there are currently 5,055 black rhinos, listed as critically endangered by the IUCN, and 20,405 white rhinos. (From our blog: "South African Rhino Poaching Hits New High.")

Trying to snuff out poaching by itself won't work, said Gwin. The South African government is fighting a losing battle on the ground to gangs using helicopters, dart guns, high-powered weapons—and lots of money. (National Geographic pictures: The bloody poaching battle over rhino horn [contains graphic images].)

"Every year they get tougher on poaching, but rhino killings continue to rise astronomically," said Gwin. "Somehow they have to address the demand side in a meaningful way. This means either shutting down the Asian markets for rhino horn, or controversially, finding a way to sustainably harvest rhino horns, control their legal sale, and meet what appears to be a huge demand. Either will be a formidable endeavor."

Hope and Hurdles

The signing in December of a memorandum of understanding between South Africa and Vietnam to deal with rhino poaching and other conservation issues raises hope for some concrete action. Observers say the next step is for the two governments to follow through with tangible crime-stopping efforts such as intelligence sharing and other collaboration. The highest hurdle to stopping criminal trade, though, is cultural, Gwin believes. "In Vietnam and China, a lot of people simply believe that as a traditional cure, rhino horn works." (Related: "Blood Ivory.")

The recent climb in rhino deaths threatens what had been a conservation success story. Since 1995, due to better law enforcement, monitoring, and other actions, the overall rhino numbers have steadily risen. The poaching epidemic, the IUCN warns, could dramatically slow and possibly reverse population gains.

The population growth is also being stymied by South Africa's private game farmers, who breed rhinos for sport hunting and tourism and for many years have helped rebuild rhino numbers. Many of them are getting out of the business due to the high costs of security and other risks associated with the poaching invasions.

Those who still have rhinos on their farms will often pay a veterinarian to cut the horns off—under government supervision—to dissuade poachers, but the process costs more than $2,000 and has to be repeated when the horns grow back every two years. Even then the farmers are stuck with horns that are illegal to sell—and which criminals seek to obtain.

Room for Debate

Rhino killings and the trade in their horns will be a major topic at a high-profile conference, the 16th meeting of the Conference of the Parties to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), which opens in Bangkok March 3. What won't surprise Gwin is if the issue of sustainably harvesting rhino horns from live animals comes up for discussion.

"It's an idea that seems to be gaining traction among some South African politicians and law enforcement circles," he said, noting that the international conservation community strongly opposes any talk of legalizing the trade of rhino horn, sustainably harvested or not. The bottom line for all parties in the discussion is clear, said Gwin: "The slaughter has to stop if rhinos are to survive."

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Arias Prosecutor Too Combative, Experts Say

He has barked, yelled, been sarcastic and demanded answers from accused murderer Jodi Arias this week.

And in doing so, prosecutor Juan Martinez and his aggressive antics may be turning off the jury he is hoping to convince that Arias killed her ex-boyfriend Travis Alexander in June 2008, experts told ABCNews.com today.

"Martinez is his own worst enemy," Mel McDonald, a prominent Phoenix defense attorney and former judge, told ABC News. "He takes it to the point where it's ad nauseam. You have difficulty recognizing when he's driving the point home because he's always angry and pushy and pacing around the courtroom. He loses the effectiveness, rather than build it up."

"He's like a rabid dog and believes you've got to go to everybody's throat," he said.

"If they convict her and give her death, they do it in spite of Juan, not because of him," McDonald added.

Martinez's needling style was on display again today as he pestered Arias to admit that she willingly participated in kinky sex with Alexander, though she previously testified that she only succumbed to his erotic fantasies to please him.

Arias, now 32, and Alexander, who was 27 at the time of his death, dated for a year and continued to sleep together for another year following their break-up.

Arias drove to his house in Mesa, Ariz., in June 2008, had sex with him, they took nude photos together and she killed him in his shower. She claims it was in self-defense. If convicted, Arias could face the death penalty.

Jodi Arias, Prosecutor Butt Heads in Cross-Examination Watch Video

Jodi Arias Maintains She 'Felt Like a Prostitute' Watch Video

Jodi Arias Admits to Killing Man, Lying to Police Watch Video

Martinez also attempted to point out inconsistencies in her story of the killing, bickering with her over details about her journey from Yreka, Calif., to Mesa, Ariz., including why she borrowed gas cans from an ex-boyfriend, when she allegedly took naps and got lost while driving, and why she spontaneously decided to visit Alexander at his home in Mesa for a sexual liaison.

"I want to know what you're talking about," Arias said to Martinez at one point.

"No, I'm asking you," he yelled.

Later, he bellowed, "Am I asking you if you're telling the truth?"

"I don't know," Arias said, firing back at him. "Are you?"

During three days of cross examining Arias this week, Martinez has spent hours going back and forth with the defendant over word choice, her memory, and her answers to his questions.

"Everyone who takes witness stand for defense is an enemy," McDonald said. "He prides himself on being able to work by rarely referring to his notes, but what he's giving up in that is that there's so much time he wastes on stupid comments. A lot of what I've heard is utterly objectionable."

Martinez's behavior has spurred frequent objections of "witness badgering" from Arias' attorney Kirk Nurmi, who at one point Tuesday stood up in court and appealed to the judge to have a conference with all of the attorneys before questioning continued. Judge Sherry Stephens at one point admonished Martinez and Arias for speaking over one another.

Andy Hill, a former spokesperson for the Phoenix police department, and Steven Pitt, a forensic psychiatrist who has testified as an expert witness at many trials in the Phoenix area, both said that despite his aggressive style, Martinez would likely succeed in obtaining a guilty verdict.

"When it comes to cross examination, one size does not fit all," said Pitt. "But if you set aside the incessant sparring, what the prosecutor I believe is effectively doing is pointing out the various inconsistencies in the defendant's version of events."

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Michelle Obama to visit three states on ‘Let’s Move’ tour, highlight successes

The campaign against childhood obesity that has become Michelle Obama’s signature program will ramp up again this week as she begins a three-state tour focused on boosting physical activity and healthy eating.

The Let’s Move initiative, which Obama has made nearly ubiquitous, has served to elevate the issue of children’s health and fitness. As the program enters its third year, questions remain about whether the efforts the first lady has backed will be long-lasting.

Still, Obama plans to continue to energetically push and expand the initiative. Doing that means spotlighting places she sees as gaining ground, something the first lady intends to do Wednesday in Clinton, Miss., at the start of her Let’s Move tour.

Mississippi’s childhood obesity rate is down 13 percent to 38 percent. The state remains among the most obese in the nation, according to the Centers for Disease Control and Prevention, but a new report shows that its rate of childhood obesity has dipped below that of California. Mississippi officials attribute the drop to a local focus on the issue, a 2007 law that mandated more physical education and a decision by the state school board to put more fruits, vegetables and whole grain on menus.

“There is no reason why this success can’t happen in cities and states all across this country, if we’re willing to work for it,” Obama plans to say, according to excerpts of her remarks released by her office. “Now is truly the time to double down on our efforts. We know what works. We know how to get results.”

Obama, who pushed for the passage of federal legislation requiring healthier school lunches, also plans to applaud the changes made by cafeteria workers, who will be on hand.

The revamped school meals have not been without controversy. A few videos of students protesting the lower-calorie menus gained traction online last year. Recently, the Agriculture Department decided to extend a window of flexibility to schools that were having trouble meeting the strictest nutritional standards.

The White House remains undaunted.

“Most simply put, there are two basic things we need to do: We need to help make the healthiest choice the easiest choice for families,” said White House assistant chef Sam Kass, and give them “real, actionable information to help them make better choices.”

To that end, Obama has been asking corporations to open stores that sell fresh food in areas where grocers aren’t easily accessible, and she has pledged to eliminate such “food deserts” — the USDA has identified more than 6,000 of them — by 2017. However, studies of whether access to healthy foods improves nutrition have been inconclusive.

Still, many who have been pushing for a focus on these issues see Obama as an amplifier. Chef and TV host Rachael Ray will film her talk show at the first lady’s event in Mississippi.

“No matter which side of the aisle you’re on, every adult American should be thinking about child nutrition,” Ray said. “Our kids are suffering in a very real and alarming way from adult disease at alarming rates.”

Discuss this topic and other political issues in the politics discussion forums.

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Asian markets up on Fed stand, strong yen hits Tokyo

HONG KONG: Asian markets mostly rose on Wednesday after US Federal Reserve head Ben Bernanke reaffirmed the central bank's huge monetary easing scheme, but a stronger yen sent Tokyo lower.

Investors remained hesitant and the euro came under pressure after Italy's election results which left no party in overall control, raising concerns that uncertainty in Rome could see the eurozone return to the dark days of crisis.

Tokyo fell 0.78 per cent by noon but Hong Kong rose 0.44 per cent, Sydney added 0.64 per cent, Shanghai climbed 1.14 per cent and Seoul was 0.18 per cent higher.

In testimony to Congress Bernanke said the Fed's $85 billion a month bond-purchase programme aimed at holding down long-term interest rates and encouraging investment -- known as quantitative easing -- was still merited.

While warning that looming steep budget cuts could slow growth, he stressed high unemployment was a main challenge to the economy, adding that the risks of the programme -- inflation, and risky behaviour in the financial industry -- were being monitored closely.

Bernanke said the programme was "providing important support to the recovery".

His comments on Tuesday were a relief for financial markets, which stumbled last week after minutes from the Fed's latest policy meeting suggested some members wanted to curtail the policy before the economy was back in track.

"Bernanke confirmed the Fed's commitment to continue quantitative easing until unemployment falls, and US economic data are clearly improving," Martin Lakos, division director in Macquarie's Private Wealth division in Australia, told Dow Jones Newswires.

On Wall Street the Dow rose 0.84 per cent, the S&P 500 added 0.61 per cent and the Nasdaq jumped 0.43 per cent.

US investors also took comfort in surprisingly robust new home sales while the Conference Board's February consumer confidence index showed a surprise jump to 69.6 from 58.4 in January, well above the average analyst estimate of 62.0.

But the dollar fell against the yen in Asia as dealers sought the safe havens after the inconclusive Italian elections.

The dollar bought 91.70 yen in Tokyo Wednesday, from 91.93 yen in New York late Tuesday and well off the 94.77 yen high seen on Monday.

The euro slipped to $1.3043 and 119.60 yen from $1.3061 and 120.08 yen.

Eurozone fears have been reignited after the Italian polls, which left the country with a hung parliament and a protest party effectively holding the balance of power.

Investors fear the outcome will mean Italy will reverse the austerity policies put in place to pay off its debts, with implications for the wider region.

Italian leftist leader Pier Luigi Bersani, who said he had "come first but not won", warned that the huge anti-austerity protest vote should be heeded beyond Italy's borders, adding: "The bell tolls also for Europe."

Oil prices were mixed, with New York's main contract, light sweet crude for delivery in April, shedding two cents to $92.61 while Brent North Sea crude for April delivery gained three cents to $112.74.

Gold was at $1,612.40 at 0220 GMT compared with $1,597.80 late Tuesday.

- AFP/ck

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No need to be ashamed of House attack: Afzal Guru's letter

NEW DELHI: Parliament attack convict Mohammad Afzal Guru had in a letter purportedly written by him over four years ago said that there was no need to be ashamed of the December 13 attack on Parliament, but had stopped short of owning any responsibility for it.

In the letter written to editor of a local Urdu weekly, Guru, asked Hizbul Mujahideen chief Syed Salahuddin not to be "ashamed of December 13" and stop terming the attack as a "conspiracy".

Editor of the Urdu weekly Shabnum Qayoom said that he has been receiving Guru's letters and articles and is sure that this letter was written by him. "I used to receive his (Guru's) letters and articles, so this was nothing new. The handwriting is the same as the previous letters and articles" he said.

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A History of Balloon Crashes

A hot-air balloon exploded in Egypt yesterday as it carried 19 people over ancient ruins near Luxor. The cause is believed to be a torn gas hose. In Egypt as in many other countries, balloon rides are a popular way to sightsee. (Read about unmanned flight in National Geographic magazine.)

The sport of hot-air ballooning dates to 1783, when a French balloon took to the skies with a sheep, a rooster, and a duck. Apparently, they landed safely. But throughout the history of the sport, there have been tragedies like the one in Egypt. (See pictures of personal-flight technology.)

1785: Pioneering balloonist Jean-Francois Pilatre de Rozier and pilot Pierre Romain died when their balloon caught fire, possibly from a stray spark, and crashed during an attempt to cross the English Channel. They were the first to die in a balloon crash.

1923: Five balloonists participating in the Gordon Bennett Cup, a multi-day race that dates to 1906, were killed when lightning struck their balloons.

1924: Meteorologist C. LeRoy Meisinger and U.S. Army balloonist James T. Neely died after a lightning strike. They had set off from Scott Field in Illinois during a storm to study air pressure. Popular Mechanics dubbed them "martyrs of science."

1995: Tragedy strikes the Gordon Bennett Cup again. Belarusian forces shot down one of three balloons that drifted into their airspace from Poland. The two Americans on board died. The other balloonists were detained and fined for entering Belarus without a visa. (Read about modern explorers who take to the skies.)

1989: Two hot air balloons collided during a sightseeing trip near Alice Springs, Australia. One balloon crashed to the ground killing all 13 people on board. The pilot of the other balloon was sentenced to a two-year prison term for "committing a dangerous act." Until today, this was considered the most deadly balloon accident.

2012: A balloon hit a power line and caught fire in New Zealand, killing all 11 on board. Investigators later determined that the pilot was not licensed to fly and had not taken  proper safety measures during the crash, like triggering the balloon's parachute and deflation system.

2012: A sightseeing balloon carrying 32 people crashed and caught fire during a thunderstorm in the Ljubljana Marshes in Slovenia. Six died; many other passengers were injured.

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Sequestration doesn’t fly

Forget threats of furloughed workers or reduced security at embassies.

Here’s what might be the most powerful incentive yet for members of Congress to come up with a deal to avert the sequester: The head of the Air Force warned Monday that the spending cuts that will go into effect March 1 could cause the military to eliminate those lovely miljet flights that lawmakers enjoy.

Members of Congress adore flying on Air Force jets, particularly for overseas trips — there are no security lines, check-in is a breeze, the service couldn’t be better, and all seats are business-class.

But if the government-wide cuts aren’t thwarted and the military has to pinch pennies, lawmakers might have to kiss those perks goodbye, Air Force Secretary Michael Donley told the crowd at the Air Force Association’s winter conference in Orlando, according to a transcript. They might have to nix “interagency and congressional senior leader travel,” he warned.

Lawmakers flying commercial? The horror.

And if members of Congress are forced into such dire circumstances, they’re in for even more delays. Transportation Secretary Ray LaHood
cautioned Friday that the sequester could cause major backups in airports around the country.

So much for all those fact-finding trips.

The House divided?

It may not have snagged the Oscar for best picture, but the movie “Lincoln” is still a smash hit in official Washington.

LaHood suggested last week that the flick about the 16th president could offer a template for averting the sequester.

“Go and see ‘Lincoln,’ ” the transportation secretary advised Republicans during an appearance at a White House press briefing during which he outlined the impact of the budget cuts (think airport delays, angry passengers calling lawmakers, etc.).

He indicated that congressional negotiators should learn from Honest Abe, who “gathered people around him” to negotiate and solve tough problems.

Not that the sequester can be equated with, you know, the potential dissolution of the Union, but still . . .

Maybe if the White House offered to buy the popcorn?

Something in the airwaves

Speculation has long been swirling around who might replace Federal Communications Commission Chairman
Julius Genachowski
. But hold the phone — all that sturm and drang may be for naught.

It appears he’s staying put for a bit.

Yes, technically, Genachowski’s term expires June 30. But by law, he can remain until Congress leaves town at the end of 2014. Other signs that he’s sticking around include a planned appearance at the National Association of Broadcasters conference in April, and his continued interest in the FCC’s plan to buy back television licenses and auction the spectrum to wireless providers, something we’re told Genachowski feels ownership of.

The White House is plenty busy filling all the actual vacancies that have cropped up in President Obama’s second term (starting with seven Cabinet or Cabinet-rank jobs), so finding a replacement for Genachowski apparently isn’t high on the to-do list.

For his part, Genachowski has deflected questions about when he might step down.

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UN calls for independent inquiry into Palestinian death

UNITED NATIONS: The United Nations called Monday for an independent inquiry into the death of a Palestinian in Israeli custody, warning that mounting tensions risk an eruption of violence in the occupied territories.

The Palestinians also demanded an independent investigation in a letter to the UN Security Council, which said that Arafat Jaradat, who died at the weekend, could have been tortured.

UN Middle East peace envoy Robert Serry made the call for an investigation in a statement after talks with Palestinian prime minister Salam Fayyad on the Jaradat's death.

Serry noted that Israeli and Palestinian experts had examined the body.

"The United Nations expects the autopsy to be followed by an independent and transparent investigation into the circumstances of Mr Jaradat's death, the results of which should be made public as soon as possible," the envoy added.

Jaradat was detained on February 18 and died five days later.

Israeli prison authorities said Jaradat appeared to have died of a heart attack. But the Palestinian minister of prisoner affairs, Issa Qaraqaa, citing the preliminary findings of the joint autopsy, reported bruises on Jaradat's body, muscle damage and broken ribs.

A letter sent by Palestinian UN ambassador Riyad Mansour to the Security Council said the autopsy revealed that Jaradat "was subjected to severe beatings, abuse and medical negligence during his captivity, possibly amounting to torture."

The letter said Jaradat had six broken bones in his neck, spine, arms and legs, along with other injuries.

Israel has said the prisoner could have suffered broken bones in attempts to resuscitate him after the heart attack.

"This horrific incident is further proof of the inhumane treatment systematically meted out by Israel against Palestinians in its jails," added the letter, which called for an "impartial investigation" and Security Council action to make Israel abide by humanitarian law.

Thousands attended the Jaradat's West Bank funeral on Monday and some militants have threatened revenge for his death.

Serry's statement said "mounting tensions present a real risk of destabilisation".

UN leader Ban Ki-moon expressed concern last week about the deteriorating state of Palestinian hunger strikers in Israeli jails and said that the rights of all Palestinian detainees must be fully respected.

-AFP/sb

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Isro does it again, 7 SATS in orbit

A five-minute delay to pre-empt an encounter withdebrisdid not dampen the spirit at Sriharikota on Monday as the satellite launch vehicle PSLV-C20 took to the skies to catapult seven satellites into orbit,including Indo-Frenchsatellite SARAL.

While initially the control room at Sriharikota was bristling with activity, a deadsilence prevailed as launch time drew close. While initially the launch time was slated for 5.56pm, the PSLV, dubbed workhorse of the Indian Space Research Organisation, took off at 6.01pm after Isro officials got wind of some debris, close to three hours before the scheduled lift-off time.

Five minutes is a significant amountof timeduring a launch since any object in space at above 500km moves at 8km per second. The delay ensured that the rocket reached the altitude after thedebrishad moved away.

Besides the Indo-French satellite with ARgos and ALtika (SARAL), India's Polar Satellite Launch Vehicle (PSLV-C20), on its 23rd flight, also launched six commercial payloads from Austria, Britain, Canada and Denmark into a 785km polar sun synchronous orbit.

With seven satellites in total, this is the second highest number of satellites to be flown on a PSLV. In April 2008, it put in orbit 10 satellites, including the national Cartosat-2A, on the PSLV-C9 rocket.

The 668.5kg 44.4-metre tall rocket, with a lift-off mass of 229.7 tonnes, has been configured in a 'core-alone' format without solid strap-on motors. According to officials this is the ninthcore-aloneflightof a PSLV.

The PSLV put the 407-kg Indo-French satellite with ARgos and ALtika (SARAL) into orbit in 1077-72 seconds. SARAL will help study ocean surface and the environment using the two devices — ARgos and the ALtika. The French ALtika altimeter works on the principle of RADAR,emitting microwave pulse and picking up signals that bounce back. The time taken for the signal to return provides the distance between satellite and the sea. "This way we'll be able to measure the height of the waves and assess changes in the ocean,"said an Isro official.

Of the six smaller satellites, two each are from Canada and Austria and one each from the U K and Denmark. This includes NEOSSAT from Canada which will detect and track either near-earth asteroids or satellites in geostationary orbit.

President Pranab Mukherjee, who witnessed the launch, hailed Isro for its track record and wished the team success in its future ventures.

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Sharks Warn Off Predators By Wielding Light Sabers

Diminutive deep-sea sharks illuminate spines on their backs like light sabers to warn potential predators that they could get a sharp mouthful, a new study suggests.

Paradoxically, the sharks seem to produce light both to hide and to be conspicuous—a first in the world of glowing sharks. (See photos of other sea creatures that glow.)

"Three years ago we showed that velvet belly lanternsharks [(Etmopterus spinax)] are using counter-illumination," said lead study author Julien Claes, a biologist from Belgium's Catholic University of Louvain, by email.

In counter-illumination, the lanternsharks, like many deep-sea animals, light up their undersides in order to disguise their silhouette when seen from below. Brighter bellies blend in with the light filtering down from the surface. (Related: "Glowing Pygmy Shark Lights Up to Fade Away.")

Fishing the 2-foot-long (60-centimeter-long) lanternsharks up from Norwegian fjords and placing them in darkened aquarium tanks, the researchers noticed that not only do the sharks' bellies glow, but they also had glowing regions on their backs.

The sharks have two rows of light-emitting cells, called photophores, on either side of a fearsome spine on the front edges of their two dorsal fins.

Study co-author Jérôme Mallefet explained how handling the sharks and encountering their aggressive behavior hinted at the role these radiant spines play.

"Sometimes they flip around and try to hit you with their spines," said Mallefet, also from Belgium's Catholic University of Louvain. "So we thought maybe they are showing their weapon in the dark depths."

To investigate this idea, the authors analyzed the structure of the lanternshark spines and found that they were more translucent than other shark spines.

This allowed the spines to transmit around 10 percent of the light from the glowing photophores, the study said.

For Predators' Eyes Only

Based on the eyesight of various deep-sea animals, the researchers estimated that the sharks' glowing spines were visible from several meters away to predators that include harbor seals (Phoca vitulina), harbor porpoises (Phocoena phocoena), and blackmouth catsharks (Galeus melastomus).

"The spine-associated bioluminescence has all the characteristics to play the right role as a warning sign," said Mallefet.

"It's a magnificent way to say 'hello, here I am, but beware I have spines,'" he added.

But these luminous warning signals wouldn't impede the sharks' pursuit of their favorite prey, Mueller's bristle-mouth fish (Maurolicus muelleri), the study suggested. These fish have poorer vision than the sharks' predators and may only spot the sharks' dorsal illuminations at much closer range.

For now, it remains a mystery how the sharks create and control the lights on their backs. The glowing dorsal fins could respond to the same hormones that control the belly lights, suggested Mallefet, but other factors may also be involved.

"MacGyver" of Bioluminescence

Several other species use bioluminescence as a warning signal, including marine snails (Hinea brasiliana), glowworms (Lampyris noctiluca) and millipedes (Motyxia spp.).

Edith Widder, a marinebiologist from the Ocean Research and Conservation Association who was not involved in the current study, previously discovered a jellyfish whose bioluminescence rubs off on attackers that get too close.

"It's like paint packages in money bags at banks," she explained.

"Any animal that was foolish enough to go after it," she added "gets smeared all over with glowing particles that make it easy prey for its predators."

Widder also points out that glowing deep-sea animals often put their abilities to diverse uses. (Watch: "Why Deep-Sea Creatures Glow.")

"There are many examples of animals using bioluminescence for a whole range of different functions," she said.

Mallefet agrees, joking that these sharks are the "MacGyver of bioluminescence."

"Just give light to this shark species and it will use it in any possible way."

And while Widder doesn't discount the warning signal theory, "another possibility would be that it could be to attract a mate."

Lead author Julien Claes added by email, "I also discovered during my PhD thesis that velvet belly lanternsharks have glowing organs on their sexual parts."

And that, he admits, "makes it very easy, even for a human, to distinguish male and female of this species in the dark!"

The glowing shark study appeared online in the February 21 edition of Scientific Reports.

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