WASHINGTON, D.C., November 3 - When a male Asian Citrus Psyllid is looking for a mate, he situates himself on a twig, buzzes his wings to send vibrations along adjacent leaves and branches, and listens for a female's response call. If the call comes, he travels in her direction, the abbreviated insect version of courtship ensues, and two to seven weeks later, scores of psyllids nymphs emerge from their eggs, feed on phloem sap, and mature into adults who head out into the world, ravaging untold numbers of citrus trees in the process.

Athens, Ga. - Evidence has been mounting that female monarch butterflies are better at flying and more successful at migration than males, and researchers from the University of Georgia have now come up with an explanation--but not one they expected.

In the study comparing physical traits of female and male monarchs, they found that although female monarchs have smaller wings and smaller flight muscles than males, their wings are thicker and also bear less weight per square inch, making them both sturdier and more efficient in flight.

If you're feeling a little blue during the transition to menopause, there's good reason, according to a new study being reported online today in Menopause. The study suggests that the estradiol (a form of estrogen) fluctuation that is common during the menopausal transition may enhance emotional sensitivity to psychosocial stress.

When combined with a very stressful life event, this sensitivity is likely to contribute to the development of a depressed mood. 

Weather patterns in a mysterious world beyond our solar system called
PSO J318.5-22
have been revealed for the first time. Layers of clouds, made up of hot dust and droplets of molten iron, have been detected on a planet-like object found 75 light years from Earth, researchers say. 

Findings from the study could improve scientists' ability to find out if conditions in far-off planets are capable of sustaining life, the team of astronomers suggests.

They used a telescope in increasingly-popular Chile (Hawaii and Arizona in the U.S. long ago declared white-collar astronomy and a mandated lack of light pollution to be environmentally hazardous) to study the weather systems in PSO J318.5-22, which is estimated to be around 20 million-years-old. 

Though we have an obesity crisis in the United States a disproportionate amount of time is spent worrying about food availability for the poor - even though the poor lead in obesity.

How can both be possible? The Great Recession still lingers with us, unemployment is stuck at 90 million people, and it's no surprise that was particularly hard on low-income families. When business declines, taxes rise and the government mandates even more costly benefits, that will hurt the poorest people, just like any increase in the costs of products does.

Having more children or having her fallopian tubes cut changes risk of different types of ovarian cancer to different levels, according to new research presented at the 2015 National Cancer Research Institute (NCRI) Cancer Conference.

Data was collected from more than 8,000 women with ovarian cancer as part of the UK Million Women Study. Researchers then examined the risk of the four most common types of ovarian cancer - serous, mucinous, endometrioid and clear cell tumors - in women with different childbearing patterns.