Emperor Penguin Droppings in Antarctica Visible in Satellite Images

Emperor penguins

First let’s get this out of the way: Emperor penguin droppings are visible from space!

More amazingly, inventive researchers are using satellite images of the fecal stains to keep tabs on the notoriously elusive penguin colonies. In satellite images of the Antarctic ice, emperor penguin scat appears as “brown patches blazing against sheets of pure white,” Conservation reports. When researchers analyzed images of the entire Antartic coastline, they identified 38 emperor penguin colonies—10 of which were previously unknown.

“This sort of scatological spying is good news for penguins, a species vulnerable to rising global temperatures and melting ice,” Conservation observes. “Previously, scientists regularly monitored only a select few colonies because of difficulties gaining ground access. With the ability to map out penguin movements from afar, scientists will now be able to better track and hopefully conserve this iconic bird.”

Source: Conservation

Image by lin_padgham, licensed under Creative Commons.

Faking DNA Evidence: You Can Do That?

Fake DNA

 

An Israeli company has created blood and saliva samples that contain fake DNA evidence, and the modification is undetectable in standard lab tests, reports Technology Review. Tel Aviv-based Nucleix demonstrated that it can replicate DNA from samples or produce new DNA based on a person’s genome sequence. The phony DNA goes into donor blood or saliva, scientific magic happens, and voila: fake crime scene evidence.

 

The company, conveniently, also has designed a proprietary test to distinguish between naturally shed DNA and its counterfeit cousin. All the same, this very falsified-evidence scenario has been “cited as a concern for those who make their genome sequence public,” Technology Review notes. It’ll be a concern for those who don’t choose to make their DNA public, too:  Just this spring, the FBI expanded its collection of DNA to include people awaiting trial (who may well be acquitted) as well as detained immigrants.

 

Source: Technology Review

 

Image by Darren // DA Creative Photography, licensed under Creative Commons.

 

The Evolution of the Primal Defense Mechanism Called Laughter

laughterThe August issue of Ode magazine is all about laughing—from laughter yoga to the scientific benefits of giggling to an especially interesting article written by Blaine Greteman that delves into the evolution of laughter: 

Today, we tend to focus on “he who laughs last.”  But he who first burst forth with our characteristic “ha-ha-ha” took a major evolutionary leap toward humanity as we know it.  Laughter is ancient, predating the development of language.  It’s ubiquitous; all mammals do it, panting with delight in response to tickling or pratfalls, as noted by none other than Charles Darwin.  It’s also one of the first things babies learn.  Now, though, scientists are asking two dead serious questions: Where does laughter come from?  And why do we do it?

Greteman begins to answer these questions with the research of scientist Robert Provine:

If you digitally remove the “ha” sound from a human laugh the way Provine has in a recording studio, you hear a long exhalation or sigh.  This extended sigh may be our most primal existential defense mechanism, controlling our breathing in ways known to lower heart rate and blood pressure.  Decoupling the laugh from respiration—so that we can giggle instead of pant—was a crucial evolutionary moment, Provine postulates, because it enabled the vocal control that allowed us to make all kinds of other “fancy sounds” needed for speech.

Source: Ode (article not available online)

Image by Jimbowen0306, licensed under Creative Commons.

 

Your Brain Is Chaos: Have a Look!

 The only thing more unsettling than reading about “neural avalanches” in your brain is watching them. Ah, brain science. Enjoy!

Source: New Scientist 

Off With Her Gene! Dethroning a Termite Queen

termiteDethroning a queen can be as easy as silencing a single gene, at least in a colony of lab termites, that is.

In a recent German study, worker termites started battling for the throne and acting as if their queen were dead when researchers disabled her Neofem2 gene. Scientists believe this discovery could hold the answer to how honeybee, ant and other “ultrasocial creature” queens keep their kingdoms in check.

Source: Science News 

Image by Velo Steve , licensed under Creative Commons . 

A Drug to Weaken PTSD

Technology ReviewHow we think about memory is about to change. Psychologist Alain Brunet, who works at McGill University and the Douglas Institute in Montreal, is conducting clinical trials in which participants take propranolol, a blood-pressure drug, after writing about a traumatic experience, reports Technology Review. This exercise seems to “weaken” the emotional strength of the memory, without disturbing any details. Six months after participating in a trial, one Canadian soldier suffering from posttraumatic stress disorder (PTSD) no longer qualified for the diagnosis.

Brunet’s research has to do with unlocking the secrets of how memories are stored, specifically proving the concept of memory reconsolidation. If Brunet is correct, when we recall a memory, it has to be packed away into the brain anew—and during that process the memory is malleable. If this is true, it opens up a bevy of possibilities for the treatment of PTSD, as well as other anxiety disorders and addiction.

There are some concerns that Brunet could be opening the proverbial Pandora’s box, but the psychologist isn’t fazed. “Brunet points out that he is trying to bring PTSD patients’ memories into a normal emotional range, not blunt their power altogether,” Technology Review senior editor Emily Singer writes. “He doesn’t think that using propranolol to render these memories bearable would create any unique potential for abuse as a way to dull the regrets, fears, and embarrassments of everyday life; people already use alcohol and drugs for such purposes.”

Source: Technology Review 

Natural History Museums in a Digital Age

Collection of the Natural History Museum

Natural history museums have traditionally measured their worth by the breadth of their physical collections. With all the digital projects that archive scientific information, these holdings may seem outdated or superfluous. Carl Zimmer thinks museums still have an important role to play in the future of science research and education, though, and writes for Seed about the importance of maintaining their real-world collections.

Digital projects like the The Encyclopedia of Life, which catalogues the work of natural history museums digitally, are evolving into stiff competition for museums. These digital resources are often less costly to maintain than regular museums, and they can sometimes reach larger audiences.

Zimmer hopes that the existence of resources like EOL won't discourage museums from taking care of their physical collections. He cites a recent case of an set of Neanderthal bones in a German museum: After languishing in storage for 150 years, scientists found them, took DNA samples, and were able to draw new insights about our evolutionary relationship to Neanderthals. Preserving physical museum collections, then, is not just a nod to the past, but a way of claiming “a stake in our future.”  

Image courtesy of Christian Guthier, licensed under Creative Commons.

Sources: Seed

Sensational Science Journalism

Exclamation

The world of science isn’t immune to sensational reporting. Jason Rosenhouse, a writer for Panda’s Thumb, takes science publications, especially New Scientist magazine, to task for making mountains out of scientific molehills. In a recent New Scientist article concerning disproval of Darwin’s theory of evolution, Rosenhouse writes, “[n]ever have you seen a science writer try so hard to make so big a deal from such meager materials.”

The editors made it the lead story (“Darwin Was Wrong,” the cover trumpets), yet the breakthrough is really just a small adjustment to previous theories, Rosenhouse writes, something already familiar to many who are up-to-date on Darwinism. Rosenhouse contends that this is the problem plaguing much of scientific journalism, where the predilection is to “sensationalize every small advance into a worldview shattering revolution.”

Image by simiezzz, licensed under Creative Commons.

Babies Got Rhythm

drumset

Babies can follow a beat just days after birth, and they can notice when a rhythm pattern is disrupted, according to study results presented by Discover. Some scientists believe the ability to recognize steady rhythms, called beat induction, could be unique to humans. Some, including the study’s authors, also think it’s innate. Lead researcher Istvan Winkler suggests that a sense of rhythm helps newborns process and respond to repetitive baby talk, paving the way for language acquisition. If he’s right, our affinity for music may be a happy evolutionary accident, a byproduct of other essential learning processes.

Image by Kamal Aboul-Hosn, licensed under Creative Commons.

 

Google Earth Leads to Major Discovery

Google EarthFurther solidifying Google move towards total world dominance, Australia's newspaper the Age reports that scientists recently discovered hundreds of new species, including new birds, insects, and monkeys, using Google Earth.

The location of the find on Mount Mabu, Mozambique, was originally singled out for a possible conservation project, but researchers decided to take a closer look when they saw previously unexplored patches of vegetation. You can see the gorgeous photos on the Guardian website.

Image courtesy of  marcbel , licensed under  Creative Commons . 

Japanese Brewery Releases Space Beer

Sapporo beer

Japan seems to have decidedly more fun with their space program than their fellow astronauts. Just two months after heralding their space-launched paper airplanes, Japanese brewer Sapporo has announced the development of beer brewed from “Sapporo Space Barley.” The barley seedlings spent five months aboard the Russian Research Modules of the International Space Station before coming back to Earth for planting, harvesting, and fermentation.

The batch produced 100 liters of beer, most of which will be used for studies on the “Impact of Extreme Environmental Stresses on Barley” (an experiment I wouldn’t mind being a part of) and the possibility of brewing in space. The brewery is doing a small public tasting in January, but alas, the brew apparently tastes just like regular beer.

(Thanks, Boing Boing)

Image courtesy of ronin691, licensed under Creative Commons.

Politics Has a Chilling Effect on Science

Years of anti-science politics haven’t just repressed controversial scientific findings; the approach has stopped controversial topics from being researched in the first place, according to research by Rutgers professor Joanna Kempner. Facing protests from lawmakers, institutions, and taxpayers, Kempner found that researchers have opted to change or eliminate divisive words (for example, “AIDS research,” “abortion,” or “homosexuality”) from their proposals, replacing them with benign euphemisms or leaving them out altogether. Kempner calls attention to the “chilling effect” that these controversies have, meaning that scientists will be less inclined to study a certain area in the future if it means uphill battles for funding.

It’s difficult to tell how much these issues have already affected research, since government databases do not show original versions of altered documents. According to Kempner, “Congressional oversight has, in this case, had the unintended consequence of making science less transparent.” This “chilling effect” hasn’t stopped all scientists, though. Kempner writes that “some scientists shy away from controversial research areas, while others relish the opportunity to defend their ideological positions.”

A Facebook Eulogy for the Mars Lander

phoenix lander

The Mars Phoenix Lander has accrued thousands of friends and fans on Facebook and Twitter since “dying” last week, when the red planet’s freezing temperatures ended the machine's functionality, Scientific American reports.

NASA spokeswoman Virginia McGregor became a pseudo-celebrity when she began transmitting Twitter tweets and Facebook messages on the lander’s behalf. This proves that 1) social networking is inescapable, even in space; and 2) humans can mourn inanimate objects in record numbers.

For a space program with a history of public relations problems, harnessing the power of social networking to eulogize the Phoenix was a brilliant bit of marketing, and a great way to exploit the sentimentality of space geeks like [sniff] yours truly.

The Synthetic Smell of Success

SmellingEngineers at MIT have developed a way to produce smell receptors in a lab, reports ScienceDaily. This might not seem like big news, but scientists have been trying to develop this kind of technology for years. Developing artificial smell sensors could help law enforcement officials replace drug- and bomb-sniffing dogs, which take extensive time and money to train, with artificial noses. Also, considering that diseases including diabetes, asthma, and certain types of cancer have a particular smell, the technology could be used to make early, potentially life-saving diagnoses.

Image courtesy of tuexperto_com3, license under  Creative Commons.

Beauty Is in the Brain of the Beholder

brain beautyScientists are trying to understand the concept of beauty using neurology, thinking that the "eye of the beholder" could be linked to a function of the brain. Writing for Seed, Moheb Costandi presents a history of scientific attempts to figure out the essence of beauty, from experiments with mescaline in the 1920s to Semir Zeki’s pioneering work in neuroaesthetics at University College London.

UCL scientists are collaborating with leaders in the arts and humanities to study the beauty in many forms, including prose and music. They’re are also examining the ways people perceive the aesthetics of architecture and other spatial relationships. In one study where scientists monitored brain activity as subjects looked at paintings, Costandi reports that “the ‘uglier’ a painting, the greater the motor cortex activity, as if the brain was preparing to escape.”

Researchers hope to learn what universal qualities, if any, the human mind assigns to beautiful things, how long-term exposure to beauty might permanently alter our neurological pathways, and how beauty affects other neurological conditions, such as depression. “An object’s beauty may not be universal,” Costandi speculates, “but the neural basis for appreciating beauty probably is.”

(Thanks, Dan.)

(Image adapted from a photo by goatling, licensed by Creative Commons.)

Usain Bolt’s “Real” Time

Usain Bolt

An indelible image from last month’s Olympic Games came when Jamaican sprinter Usain Bolt dominated the 100-meter dash so completely that he began to celebrate before the race was over. He set a new world record, but how much faster could he have gone if he hadn’t slowed down for a victory dance? For all of those who have been waiting with bated breath to know for sure, a team of physicists at the Theoretical Astrophysics at the University of Oslo, Norway, has figured it out. * Bolt may have been able to shave a full .14 seconds off his finish, had he run the race normally. Maybe for their next project those scientists can calculate what else they could have studied in the time it took them to figure this one out.

(Thanks, New Scientist)

Image by Richard Giles, licensed under Creative Commons.

Correction: The item originally read "with baited breath." It has been corrected

The Vending Machine Chronicles

When I first came to work at Utne Reader, I hid my occasional trashy-food indulgences from the other staffers—smuggling clandestine bowls of orange-dye-laden, mushroom-soup-spiked macaroni & cheese casserole out of the kitchen. (I’m from Wisconsin. Sometimes I just can’t help myself.)

It was so not necessary. Turns out, Utne Reader staff people are adventurous eaters, devotees of organic, local, and fairly-traded cuisine, as well as bold gastronauts in the weird, kitschy, and gross domains.

I present to you a vending machine discovery made this Tuesday afternoon by our intrepid librarian and crafty research editor: Red licorice rope, stuffed with a viscous Sweet Tarts goo, stuffed with crunchy Nerds.

turducken of the candy world. 

Ladies and gentlemen: The turducken of the candy world.

 

 




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