State of the Union: Obama Pushes Job Creation

Pursuing an aggressive and diverse early second-term agenda, President Obama turned his focus Tuesday night squarely to the economy, using his State of the Union address to unveil new government initiatives aimed at creating jobs.

The defining duty of the new Congress and new administration is to "reignite the true engine of America's economic growth -- a rising, thriving middle class," Obama said Tuesday night from the House chamber.

"That must be the North Star that guides our efforts," he said.

Obama's proposals had a familiar ring, including re-packaged economic ideas but also offering several bold new measures aimed at boosting the middle class.

None of the proposals would add to the deficit "by a single dime," Obama pledged, with costs offset by savings carved out in the budget and from money saved from ending two wars.

"It's not a bigger government we need, but a smarter government that sets priorities and invests in broad-based growth," Obama said.

For the first time as president, Obama called for raising the minimum wage from $7.25 to $9.00 an hour by 2015. He proposed to ensure future increases by indexing the minimum wage to inflation.

He proposed a national goal of universal pre-school education, an effort to help states provide tens of thousands of low- to middle-income four-year-old children access to quality public education from an earlier age.

Charles Dharapak/Pool/AP Photo

Obama: A Rising Middle Class Should Be 'North Star' Watch Video

Obama Wants Minimum Wage: 'A Wage You Can Live On' Watch Video

Obama Announces Afghanistan Troop Withdrawal Watch Video

And, to heal the nation's crumbling roads and bridges, Obama offered a $50 billion "fix it first" infrastructure program that would prioritize repair of existing structures before building new ones.

"Every day, we should ask ourselves three questions as a nation," Obama said. "How do we attract more jobs to our shores? How do we equip our people with the skills needed to do those jobs? And how do we make sure that hard work leads to a decent living?"

Answers to those questions, the president suggested, include redoubling investments in clean energy technologies -- a step which he said would both benefit the environment and reduce U.S. dependence on foreign oil.

"For the sake of our children and our future, we must do more to combat climate change," he said.

He called for doubling the amount of renewable electricity generation in the U.S. by 2020, and announced an energy version of his "Race to the Top" education program that would give states grants for the best energy efficiency programs.

Related: 7 Things Obama Says at Every State of the Union

In tandem with his economic focus, Obama announced the withdrawal of 34,000 U.S. troops from Afghanistan by this time next year, cutting in half the current force and marking a quickened pace for the final exit of U.S. combat forces by a 2014 deadline.

There are currently 66,000 U.S. troops serving in Afghanistan. Obama has vowed to bring nearly all of them home by the end of next year, though a small contingent will likely remain to train Afghan forces and assist counterterrorism operations, officials have said.

Obama touched briefly on his recently-unveiled proposals to overhaul the nation's immigration system, expand rights for gay and lesbian Americans and curb an epidemic of gun violence.

With dozens of victims of gun violence looking on from the House gallery, including former Rep. Gabby Giffords, and families of victims from shootings at Newtown, Conn., Oak Creek, Wisc., and Aurora, Colo., Obama made an emotional plea for an up-or-down vote on his gun control plan.

"Each of these proposals deserves a vote in Congress," he said of proposed restrictions on assault-style weapons and high capacity magazines, and enhanced background checks, among other measures.

"If you want to vote no, that's your choice," he said. "But these proposals deserve a vote. Because in the two months since Newtown, more than a thousand birthdays, graduations and anniversaries have been stolen from our lives by a bullet from a gun."

Read More: President Obama's Past State of the Union Promises

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Arctic sunshine cranks up threat from greenhouse gases

IT'S a solar double whammy. Not only does sunlight melt Arctic ice, but it also speeds up the conversion of frozen organic matter into carbon dioxide.

The amount of carbon in dead vegetation preserved in the far northern permafrost is estimated to be twice what the atmosphere holds as CO₂. Global warming could allow this plant matter to decompose, releasing either CO₂ or methane – both greenhouse gases. The extent of the risk remains uncertain because the release mechanisms are not clear.

Rose Cory at the University of North Carolina at Chapel Hill and her colleagues analysed water from ponds forming on melting permafrost at 27 sites across the Arctic. They found that the amount of CO₂ released was 40 per cent higher when the water was exposed to ultraviolet light than when kept dark. This is because UV light, a component of sunlight, raises the respiration rate of soil bacteria and fungi, amplifying the amount of organic matter they break down and the amount of CO₂ released.

The thawing Arctic is emerging as a potentially major source of positive feedback that could accelerate global warming beyond existing projections. "Our task now is to quantify how fast this previously frozen carbon may be converted to CO₂, so that models can include the process," Cory says.

Journal reference: PNAS, DOI: 10.1073/pnas.1214104110.

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Obama rebukes North Korea over test

WASHINGTON: US President Barack Obama said Tuesday that North Korea's "provocative" nuclear test did not make it more secure and called for "swift" and "credible" international action in response.

Obama also vowed in a written statement that Washington would remain vigilant in the face of the underground detonation by the Stalinist state and steadfast in its defense commitments to its allies in Asia.

"These provocations do not make North Korea more secure," Obama said.

"Far from achieving its stated goal of becoming a strong and prosperous nation, North Korea has instead increasingly isolated and impoverished its people through its ill-advised pursuit of weapons of mass destruction and their means of delivery."

Obama complained that the test was a "highly provocative act" that -- following the North's December 12 ballistic missile launch -- undermined regional stability and violated UN Security Council resolutions.

"The danger posed by North Korea's threatening activities warrants further swift and credible action by the international community," Obama said, ahead of an emergency meeting of the UN Security Council called for later on Tuesday.

"The United States will also continue to take steps necessary to defend ourselves and our allies," Obama said.

- AFP/ck

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Foursquare debuts venue pages to share with non-members

Foursquare launched its shareable mobile venue pages for non-members today, as it continues down the path of becoming less of a social network and more of a recommendation search engine -- a la Yelp.

"Foursquare has tons of helpful information about places, like photos, menu items, and great tips from insiders and local experts," the company wrote in a blog post today. "When you Tweet, post to Facebook, email or text about a place with friends who don't have Foursquare on their phones, they'll be linked to a shiny new page showing all the most important info about it."

The shareable venue pages highlight user tips and photos; they also have essential information like the address and hours of the store, restaurant, park, or other spot. To share a page with friends -- including non-Foursquare members -- users just tap the "share" button while in the social network's mobile app.

Foursquare has been continuing to morph from a check-in social network to a more comprehensive location search engine -- putting it in direct competition with other recommendation and rating services, such as Yelp.

In November, the company launched its 10-point scoring system for local business and in October it launched its new Web site, which is open to nonmembers and has a prominent search box. The company has also been in the process of adding more specific information to its listings, like when a place is open and prices.

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Kumbh Mela: Pictures From the Hindu Holy Festival

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  Holy Bath

  Photograph by Roberto Schmidt, AFP/Getty Images

  The Hindu festival known as Kumbh Mela, often referred to as the world’s largest gathering of humanity, peaked on Sunday at the meeting of the Yamuna, Ganges, and mythical Saraswati rivers. The festival in the northern Indian city of Allahabad sees tens of millions of pilgrims bathe in the Ganges to wash away sins. Pilgrims and saints pray as they soak.

  Published February 11, 2013

  
  











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  New Initiates

  Photograph by Sheeraz Rizvi, Hindustan Times/Getty Images

  Newly initiated Hindu ascetics perform rituals during the Kumbh Mela in Allahabad. The festival happens every three years in one of four Indian cities, with the event in Allahabad considered the holiest. It’s also the biggest.

  Published February 11, 2013

  
  











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  Sacred Fire

  Photograph by Daniel Berehulak, Getty Images

  Hindu priests perform a ceremony beside the Ganges River during the Kumbh Mela in Allahabad. The festival lasts 55 days.

  Published February 11, 2013

  
  











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  River Sitting

  Photograph by Baciu Cristian, Demotix/Corbis

  A Hindu ascetic performs a ritual last month during the 2013 Kumbh Mela.

  Published February 11, 2013

  
  











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  Bridge Crossings

  Photograph by Manish Swarup, AP

  Believers walk on pontoon bridges to take a dip at the confluence of the Ganges, Yamuna, and mythical Saraswati Rivers, a site known as Sangam. The processions are led by heads of monasteries and by naked ascetics smeared with ash.

  Published February 11, 2013

  
  











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  Stampede Victim

  Photograph by Manan Vatsyayana, AFP/Getty Images

  A woman injured in a Sunday stampede that left 36 dead in Allahabad lies in a hospital bed in the city. There are conflicting accounts of what provoked the stampede.

  Published February 11, 2013

  
  











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  Train Rush

  Photograph by Daniel Berehulak, Getty Images

  Hindu devotees at the Allahabad train station press toward an arriving train.

  Published February 11, 2013

  
  











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  Train Station Prayer

  Photograph by Daniel Berehulak, Getty Images

  A Hindu believer waits for a train at the Allahabad train station, the site of Sunday’s stampede.

  Published February 11, 2013

  
  

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Great Energy Challenge Blog

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North Korea Says it Has Conducted a Nuclear Test

North Korea says it has successfully tested a miniaturized nuclear device Tuesday, according to state media.

A large tremor measured at magnitude 4.9 was detected in North Korea and governments in the region scrambled to determine whether it was a nuclear test that the North Korean regime has vowed to carry out despite international protests.

Official state media said the test was conducted in a safe manner and is aimed at coping with "outrageous" U.S. hostility that "violently" undermines the North's peaceful, sovereign rights to launch satellites. Unlike previous tests, North Korea used a powerful explosive nuclear bomb that is smaller and lighter, state media reported.

President Obama called the test "a highly provocative act" in a statement Tuesday morning.

"The danger posed by North Korea's threatening activities warrants further swift and credible action by the international community. The United States will also continue to take steps necessary to defend ourselves and our allies,"Obama said.

"The United States remains vigilant in the face of North Korean provocations and steadfast in our defense commitments to allies in the region," he added.

The U.N. Security Council will hold an emergency meeting on North Korea's nuclear test later this morning.

Suspicions were aroused when the U.S. Geological Survey said it had detected a magnitude 4.9 earthquake Tuesday in North Korea.

The Comprehensive Test Ban Treaty Organization told ABC News, "We confirm that a suspicious seismic event has taken place in North Korea."

North Korea Threatens More Nuclear Tests, Warns U.S. Watch Video

"The event shows clear explosion-like characteristics and its location is roughly congruent with the 2006 and 2009 DPRK (North Korea) nuclear tests," said Tibor Toth, executive secretary of the organization.

"If confirmed as a nuclear test, this act would constitute a clear threat to international peace and security, and challenges efforts made to strengthen global nuclear disarmament and non-proliferation," Toth said in a statement on the organization's web site.

Kim Min-seok, a South Korean Defense Ministry spokesman, told reporters that North Korea informed United States and China that it intended to carry out another nuclear test, according to the AP. But U.S. officials did not respond to calls from ABC News Monday night.

The seismic force measured 6 to 7 kilotons, according to South Korea.

"Now that's an absolutely huge explosion by conventional terms. It's a smallish, but not tiny explosion by nuclear terms. It's about two-thirds the size of the bomb that the U.S. dropped on Hiroshima," James Acton, a Senior Associate at the Carnegie Endowment for International Peace, told ABC News.

North Korea threatened in January to carry out a "higher-level" test following the successful Dec. 12 launch of a long range rocket. At the time, North Korea's leader Kim Jong-Un said his country's weapons tests were specifically targeting the United States.

The suspicious tremor comes just hours before President Obama is to give the State of the Union address, and it marks the first diplomatic test in the region for new Secretary of State John Kerry.

Also, South Korea's new president, Park Geun-hye, is scheduled to be sworn in on Feb. 25. One of North Korea's biggest holidays, Kim Jong-il's birthday, falls on Feb. 16.

China, North Korea's main ally in the region, has warned North Korea it would cut back severely needed food assistance if it carried out a test. Each year China donates approximately half of the food North Korea lacks to feed its people and half of all oil the country consumes.

Both of North Korea's previous tests used a plutonium-based method for making bomb fuel. The first was deemed a failure, the second only slightly less so. If the most recent test used HEU (highly enriched uranium), a far more difficult-to-detect method of producing bomb fuel, it would be a significant and worrisome step forward for North Korea's weapons program.

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Why we're building a €1 billion model of a human brain

The Human Brain Project has just won a €1 billion research prize. Its director Henry Markram says the initiative will unify our understanding of the brain

Your project aims to recreate the human brain in a supercomputer. Why?
We want to reach a unified understanding of the brain and the simulation on a supercomputer is the tool. Today you have neuroscientists working on a genetic, behavioural or cognitive level, and then you have informaticians, chemists and mathematicians. They all have their own understanding of how the brain functions and is structured. How do you get them all around the same table? We think of the project as like a CERN for the brain. The model is our way of bringing everyone, and our understanding, together.

What do you hope will come of the project?
There are three goals. As the model becomes more accurate and behaves more like a brain, we could couple it to a robot and see the robot learning. Then we'll be able to trace the chain of events from molecules to cognition.

Second, we plan to collect data from hospitals around the world to search for biological signatures of disease. We believe this will give us a new classification of brain disease, which can be used to diagnose people objectively - not solely based on their symptoms.

And finally, we want to build neuromorphic computers, which would have processors that can learn, mimicking the way the brain does.

How close are you to recreating a brain?
We've developed an algorithm to work out some of the rules for how to reconstruct the brain. We can now make thousands of predictions that when tested are accurate, and we can reconstruct small brain circuits of up to about 1 million rat neurons. Now we've got to connect those groups of neurons to make brain regions, then connect the regions to make a computer model of a whole brain. Once we've modelled a rat brain, then we update the rules and gradually move towards a human model.

Could the model be too detailed?
People are afraid of detail and complexity. But a drug is a molecule. It doesn't hit a cell, or the brain, it hits other molecules. There's no reason why we shouldn't try to explain how all the molecules are interacting with one another. Sheer numbers do not equal complexity. One hundred billion neurons is numbers, not complexity.

What about criticisms that it drains funds from more readily achievable neuroscience?
That is an incredibly short-sighted view of how a big science project impacts the rest of the field. Take the Human Genome Project - you can criticise them for all the promises they made at the time, but we would be in the dark ages now if we hadn't done that project. It has benefitted every biologist and geneticist on the planet today.

Once completed, could the simulated brain ever become conscious?
When we couple the model to a robot, the robot will behave, and we'll see this in the way its neurons are firing. Does that mean it's conscious? That's a philosophical question - and an unresolved one.

This article appeared in print under the headline "One minute with... Henry Markram"

Profile

Henry Markram is the director of the Human Brain Project at the Swiss Federal Institute of Technology in Lausanne (EPFL). The project just won a €1 billion European research prize

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Tech giants summoned by Australia pricing inquiry

SYDNEY: Global technology giants Microsoft, Apple and Adobe were on Monday ordered to appear before a pricing inquiry examining the often-higher cost of tech goods in Australia compared with other economies.

The lower house committee holding the probe, which was launched last May, said it had summoned the trio to appear at a public hearing next month to explain why Australian customers paid more for the same products.

"The committee is looking at the impacts of prices charged to Australian consumers for IT products," it said in a statement.

"Australian consumers often pay much higher prices for hardware and software than people in other countries."

The inquiry was set up to examine claims by consumer advocacy groups of price discrimination for Australians on technology, with music, games, software, and gaming and computer hardware costing substantially more than elsewhere.

According to consumer lobby group Choice, Australians pay on average 73 percent more on iTunes downloads than the United States, 69 percent more on computer products and a staggering 232 percent more on PC game downloads.

Office software was on average 34 percent more expensive in Australia when compared with the United States, Choice said in its submission to the inquiry, with hardware coming in at 41 percent more expensive.

One software package was A$8,665 (US$8,939) more expensive to buy in Australia than the United States -- a gap that Choice described as "particularly unreasonable".

"For this amount, it would be cheaper to employ someone for 46 hours at the price of $21.30 per hour and fly them to the US and back at your expense -- twice," Choice said.

Choice only did comparisons to the United States and Britain; the inquiry is examining discrepancies with these countries as well as with Asia-Pacific economies.

Apple and Microsoft have both made their own submissions to the committee, arguing that prices differed across jurisdictions due to a range of factors including freight, local taxes and duties and foreign exchange rates.

The Australian Information Industry Association, which represents Adobe and other major ICT firms, has submitted to the committee that the "costs of doing business in Australia are higher than in many other countries".

It pointed to retail rent costs and high wages as some of the main factors behind business costs in Australia being "5-10 percent higher than any other country... and these costs are passed onto consumers".

Apple and Microsoft both declined to comment when contacted by AFP while Adobe said it would "cooperate with the committee as we have done since the inquiry began".

- AFP/ir

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7 social media lessons from the Grammys for organizers of other events

@LLCoolJ promoting the #Grammys hashtag during the 2013 Grammy ceremony.

It's awards season in the U.S., which means big shows on TV, including the Oscars and the Grammys. While we have a couple of weeks to go till the Oscars, their musical counterparts, the Grammys, were presented Sunday night.

Last year, I wrote about how the Oscars missed an opportunity to use hashtags the right way on TV and I look forward to seeing if they learnt anything from the Grammys (I should note here that CBS owns both the Grammys and CNET, but I am writing this unprompted and on my own).

Here are six things the Grammys did right on social this year - plus one they didn't - and what folks who run other events, especially conferences, can learn.

1. Be semi-obnoxious: The Grammys did what I say to anyone trying to promote their use of social media: be semi-obnoxious, telling people what your hashtags and handles are, and what platforms you are on. You can't be shy about it. You need to, more than once, tell them how and where to follow you. For a conference, be sure to print the hashtags and handles on the official program and even the invitation, if possible.

2. Tell your audience what they will get for following you on social media: On at least four occasions, host LL Cool J (@llcoolj) was on camera talking up the night's official hashtag - #grammys - and reminding viewers to tweet to the official handle. He also told the audience that he and @TheGrammys were posting behind-the-scenes photos and other exclusive content on Twitter.

3. Let people know you are listening: Just as importantly, he appeared to read select tweets on the air, giving the impression that he - or at least some on the Grammys social media team - was browsing the tweets. Letting it be known that there's someone reading tweets is a great way to trigger more tweets. At a conference, the emcee or moderator can read out selected tweets.

4. Spell it out: Before going to some of the commercial breaks, there were promos for social media channels, as you can see from this Tout video of the broadcast, urging people to look at Grammy.com as well as Twitter.com/thegrammys, Faceboo.com/thegrammys and GetGlue.com/thegrammys:

At a conference you can remind the audience, from the podium, what the handles and hashtags are, and during breaks run a tweet wall on the main screen. You can use VisibleTweets or Tweetbeam to run tweets, but best to do it only during breaks so that the audience isn't distracted as the tweets rush by behind the speakers.

5. Be active on social media during your event: The various Grammy platforms were active throughout the broadcast. At a conference, it's important to have active official accounts to direct, guide and enhance the conversation, so you aren't just relying on attendee participation.

The official Grammys account tweets about the Bob Marley tribute by Sting, Bruno Mars and some of the Marley children.

A promo poster for The Grammys featuring Rihanna.

6. Think about social media long before the event: The Grammys were promoting the ceremony on various platforms and not waiting for the last minute. Even the playful "#The World is Listening" campaign of posters featuring Rihanna, Linkin Park, Taylor Swift and others, hinted at the social aspects of the show (thankfully, the producers didn't actually use what would have been the world's worst hashtag). For a conference, think about adding the handles and hashtag to the invitations, reminder emails, etc.

7. Use social media to help the viewer keep up: On every awards show, it's hard to keep straight who's on stage. Between the introducers of the performers to the performers to the winners, it's easy to lose track of who you are watching at any moment. And even if you know who that is on stage, trying to tweet about him or her often means having to look up the person's Twitter handle. While the Grammys tweeted about who was on stage, the on-air titles could easily have shown some of the relevant handles, thus helping viewers keep up. Especially people like me who don't know many of the popular names in today's music.

At conferences, make sure the slides announcing a panel or keynote have the relevant handles on them. Or have the moderator or emcee mention ways in which attendees can connect with the speakers, and do it multiple times.

Another idea: Every nametag should have printed on it the conference's hashtag and the attendee's Twitter handle (if available).

All these activities seem to have paid off, as Grammy related hashtags were trending around the world and continued to do so hours after the show ended. According to stats provided by Twitter to Mashable, there were about 13.2 million tweets during the show and these were the top three tweets-per-minute moments:

Jay-Z, Kanye West, Frank Ocean and The-Dream win Best Rap Collaboration: 116,400; Prince announce's Gotye winning Record of the Year: 109,400; Fun. wins best new artist: 100,600.

I will be taking a lot of this advice this week as I host the third annual Social Media Weekend at Columbia Journalism School. Of course, our team is tiny and budget is minuscule compared to the Grammy extravaganza, but thanks to fabulous volunteers, we will be in the game. Even if you can't make it, thanks to my being semi-obnoxious (or worse) about getting people to tweet, you can follow the action before, during and after via #smwknd. We are also giving away some fabulous tweet-based prizes (including career counseling and social-media makeovers) that anyone can win.

If you haven't seen them, Twitter's official hashtags best practices are here. Consolidate and Be #Obvious are two of the tips there.

Your turn: What did you think of the Grammys and social media? What social tips do you have for conference organizers? Post your comments below or tweet me, @sree.

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Year of the Snake: The Serpent Behind the Horoscope

On February 10, people all around the world will ring in the Lunar New Year with paper lanterns and firecrackers. At the heart of it all sits the snake, a slithery reptile feared for its sharp fangs and revered for its undeniable charm. (Watch videos of some of the world's deadliest snakes.)

Those born in the Year of the Snake are said to be intelligent and quick thinking, but they can also be dishonest and prone to show off. Though based on Chinese astrology, some of these traits are similar to characteristics of the actual serpent.

Snakes are known to be great at outsmarting their predators and prey. Their colorful, patterned skin makes them some of the best tricksters in the animal kingdom. And despite a bad rap as frightening creatures, snakes never fail to fascinate scientists, explorers, and zoo-goers. (See pictures of snakes.)

With more than 3,400 recognized species, snakes exhibit incredible diversity in everything from behavior and habitats to skin colors and patterns.

"As a vertebrate lacking in limbs, all snakes look largely like other snakes, yet they succeed in tremendous diversity in multiple directions," said Andrew Campbell, herpetology collections manager at the University of Kansas Biodiversity Institute.

To usher in the Year of the Snake, Campbell and herpetologist Dennis Ferraro at University of Nebraska-Lincoln weigh in on some of the snake's qualities that the Chinese zodiac predicts people born this year will have.

Horoscope: Snakes have an innately elegant personality but can also be ostentatious at times.

In Nature: Snakes come in all different colors, patterns, and textures, making them some of nature's most visually stunning creatures.

According to Campbell, the utility of their coloring falls into two main categories: to use as camouflage and to warn predators to stay away.

Among the most beautiful are the emerald tree boa (Corallus caninus)—whose vibrant green body is decorated with white stripes resembling lightning bolts—and the Brazilian rainbow boa (Epicrates cenchria), characterized by its iridescent skin and the large black rings down its back.

For some snakes, the diversity in color occurs within the same species, which is why Ferraro tells his student not to identify snakes by colors. For example, the polymorphic bush viper (Atheris squamigera), many of which are green, also come in shades of yellow, orange, red, and blue, as captured in photographer Guido Mocafico's "Serpent Still Life" photo series.

Horoscope: The snake is known to be the master seducer of the Chinese zodiac.

In Nature: Female garter snakes (Thamnophis) have all the luck with the gentlemen.

When a female garter snake is ready to mate, she announces it by producing chemicals called pheromones. Males, upon encountering the scent, immediately come crawling out and gather around the female in a large, wriggling "mating ball."

The competition intensifies when a male passing by the ball tries to fool the others by producing a scent that mimics that of the female, said Ferraro.

As soon as his rivals are led off in the wrong direction, the trickster slides right in. In areas with smaller populations of garter snakes, each ball consists of about 12 males and one female.

But in places like Manitoba, Canada, where garter snakes travel to certain areas to mate after coming out of hibernation, a mating ball can have thousands of males and only a hundred females.

Horoscope: Though snakes don't often tell lies, they will use deception when they feel it's necessary and they think they can get away with it.

In Nature: When it comes to using trickery to catch dinner, or to hide from predators, snakes are no amateurs.

Their sneaky techniques range from tricking fish to swim right into their mouths, to playing dead when threatened, to using their wormlike tails to lure in prey.

The most cunning of them all is the two-headed snake. To protect against a sneak attack from behind, the two-headed snake's tail looks just like its head. While the business end looks for food, the snake coils up its body and rests its tail on top to look like it is on guard.

The tail can even mimic the behavior of a retreating snake to trick predators into thinking they're going face-to-face with their opponent.

Horoscope: When snakes get down to work, they are organized and highly efficient, and they work quickly and quietly.

In Nature: While snakes are often perceived as lazy, Campbell said people are mistaken. "What we perceive as shy, lazy, or inactive is really efficiency," he said.

"On average, they are bigger than other lizards and can build a lot of body mass. They do that by being efficient in feeding and traveling." In other words, snakes don't move very much because they don't have to.

When it comes to food, snakes catch prey that are significantly larger than them so they can eat less frequently. This reduces the time they spend hunting and thus makes them less vulnerable to falling victim to a predator themselves.

For Campbell, the most impressive hunter is the eastern diamondback rattlesnake (Crotalus Adamanteus), which is able to hunt and kill its prey very quickly using venom, so it doesn't have to travel far. "Because they don't have to do that, they can become relatively large and heavy, being able to build up body mass and not having to spend that energy hunting."

Horoscope: Snakes are charming, with excellent communication skills.

In Nturea: For snakes, their visual and auditory senses don't mean much when it comes to communicating with each other.

Instead, they use their sense of smell and the chemicals produced by their musk glands. Unlike mammals, a snake picks up scent through the forks of its tongue.

When the snake retracts its tongue, it inserts the forks into grooves in an olfactory organ located at the roof of its mouth. Depending on which fork picks up a stronger scent, the snake knows in which direction to go when looking for prey or a mate.

It's when snakes are threatened that they use sight and sound, said Ferraro. Rattlesnakes, for example, shake their tails, making a loud rattling noise to ward off predators.

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