This male Hetaerina damselfly from the occisa species has red spots at the base and tip of its wings but no black pigmentation.
Why do so many animal species — including fish, birds and insects — display such rich diversity in coloration and other traits? In new research, Gregory Grether, UCLA professor of ecology and evolutionary [...]

A highly focused laser beam (at right) is used to apply mechanical force (shown as a double headed arrow) to a microsphere (white) coated with histocompatibility protein.

The immune system’s T cells have the unique responsibilities of being both jury and executioner. They examine other cells for signs of disease, including cancers or infections, and, if [...]

the Mercury Surface

A NASA spacecraft gliding over the battered surface of Mercury for the second time this year has revealed more previously unseen real estate on the innermost planet. The probe also has produced several science firsts and is returning hundreds of new photos and measurements of the planet’s surface, atmosphere and magnetic field.

Illustration of rat with spinal injury. (Credit: Image courtesy of University of California
The first human embryonic stem cell treatment approved by the FDA for human testing has been shown to restore limb function in rats with neck spinal cord injuries — a finding that could expand the clinical trial to include people with cervical damage.

Sun Zhongjie, 19, chopped off his own finger as a protest against police entrapment
A severed finger sparked an online uproar that went viral. And very quickly, rattled authorities here took note.  The story of Sun Zhongjie, a 19-year-old driver who chopped off his finger to decry police entrapment, shows how the Internet has become an [...]

This image represents “copolymer micelles,” tiny drug-delivery spheres that could be used in a new approach for repairing damaged nerve fibers in spinal cord injuries. The bottom graphs show data indicating damaged spinal cord tissue recovered its “action potential,” or ability to transmit signals, after treatment with the micelles.
Researchers at Purdue University have discovered a [...]

NASA’s Spitzer Space Telescope captured this infrared image of a giant halo of very fine dust around the young star HR 8799.
Before our planets found their way to the stable orbits they circle in today, they wiggled and jostled about like unsettled children. Now, NASA’s Spitzer Space Telescope has found a young star with evidence [...]

The Mojave Desert. As the climate gets warmer, arid soils lose nitrogen as gas, reports a new Cornell study. That could lead to deserts with even less plant life than they sustain today, say the researchers.

As the climate gets warmer, arid soils lose nitrogen as gas, reports a new Cornell study. That could lead to [...]

Artist’s rendering of viruses. Scientists have developed synthetic molecules capable of enhancing the body’s immune response to HIV and HIV-infected cells, as well as to prostate cancer cells.
Researchers at Yale University have developed synthetic molecules capable of enhancing the body’s immune response to HIV and HIV-infected cells, as well as to prostate cancer cells. Their [...]

White-faced Capuchin (Cebus capucinus) checking its nails
Research at the universities of Liverpool and Oxford into the finger length of primate species has revealed that cooperative behavior is linked to exposure to hormone levels in the womb.

Chinese Premier Wen Jiabao offered Africa $10 billion in concessional loans over the next three years on Sunday, saying China was a “true and trusted friend” of the continent and its people.
 

The online video service Hulu added a long-overdue feature last week: A “coming soon” page designed to give the site’s millions of users a heads-up about when they’ll be able to watch the next new episode of “Fringe” or “Parks and Recreation” in their Web browsers.

Galactic Suite
Anyone with a cool $4 million and change might consider doing what 43 other people have done, and sign up for an orbital space vacation in 2012 with Galactic Suite Space Resort. The Barcelona-based company plans to open the first space hotel if all goes according to plan.
 

This is the age of the amafessional, when amateurs are rivaling professionals in opportunity, talent and the ability to produce quality work. It’s happening in virtually every field. In areas ranging from communications to medicine to simply making things with your hands, amafessionals are gaining in numbers and the ability to market their services.
 

Live to 149, program your nerves for pleasure, and eat entrail-fed meat machines, all by 2020.
Check out Part I of our series about life in the year 2020.
Nobody delivers profanity better than Bruce Willis. Nobody. Perhaps that’s why he’s seen so much of it in practically every script he’s tackled during the last 20-odd years. [...]

Japan’s ageing population and low birth rate are fuelling fears of a population slump over the coming years.
 

Hemigraphis alternata, or purple waffle plant, one of the highest ratedornamentals for removing indoor air pollutants.

Air quality in homes, offices, and other indoor spaces is becoming a major health concern, particularly in developed countries where people often spend more than 90% of their time indoors. Surprisingly, indoor air has been reported to be as much [...]

New data from rats with head-mounted microscopes shed light on how we put the world together seamlessly while we move around.
By building a tiny microscope small enough to be carried around on a rats` head, scientists at the Max Planck Institute for Biological Cybernetics in Tübingen, Germany, have found a way to study the complex [...]

Body maps in our brain may influence how we perceive our physical bodies — for example, if there is a lot of brain area associated with our right arm, we will view it being as longer compared to our left arm.
There are areas in the brain devoted to our arms, legs, and various parts of [...]

Eating a meal quickly, as compared to slowly, curtails the release of hormones in the gut that induce feelings of being full, according to new research.
According to a new study accepted for publication in The Endocrine Society’s Journal of Clinical Endocrinology & Metabolism (JCEM), eating a meal quickly, as compared to slowly, curtails the release [...]

New research confirms that the volcanic processes at work beneath the Ethiopian rift are nearly identical to those at the bottom of the world’s oceans, and the rift is indeed likely the beginning of a new sea.

In 2005, a gigantic, 35-mile-long rift broke open the desert ground in Ethiopia. At the time, some geologists believed [...]

Nazca Lines in the Peruvian Desert.
An ancient South American civilisation which disappeared around 1,500 years ago helped to cause its own demise by damaging the fragile ecosystem that held it in place, a study has found.

Young tyrannosaurs did serious battle against each other.
We all know adolescents get testy from time to time. Thank goodness we don’t have young tyrannosaurs running around the neighborhood.

New research finds that a quick glance at someone’s facial structure may be enough for us to predict their tendency towards aggression.
Angry words and gestures are not the only way to get a sense of how temperamental a person is. According to new findings in Psychological Science, a quick glance at someone’s facial structure may [...]

Mark Tuszynski, MD, PhD.
Scientists at the University of California, San Diego School of Medicine report that regeneration of central nervous system axons can be achieved in rats even when treatment delayed is more than a year after the original spinal cord injury.