Culture

Bumblebees learn to avoid camouflaged predators by sacrificing foraging speed for predator detection, according to scientists from Queen Mary, University of London.

One of the bumblebee's main predators is the crab spider. Crab spiders hunt pollinating insects like bees and butterflies by lying in wait on flowers, and are particularly difficult for their prey to spot because they can change their colour to blend in with their surroundings.

Researchers reporting in the September 4th Current Biology, a Cell Press publication, have new insight into the motivating factors that drive breeding pairs of some tropical bird species to sing duets. Those duets can be so closely matched that human listeners often mistake them for solos.

Lowell, MA – September 4, 2008 – A new study in Latin American Politics and Society highlights the multifaceted nature of the Colombian conflict, identifying the factors that are driving conflict and illustrating how disregard for the range of these factors lends support to policies that do not enhance prospects for peace.

Logan, UT – September 4, 2008 – There is not a universally accepted definition of predatory lending by policy makers, regulators or people involved in the mortgage business. Predatory lending has been equated to mortgage abuse, mortgage fraud, loans with hidden prepayment penalties or even the legally acceptable loans that simply offer higher interest rates, or any other unethical practices in a mortgage transaction. The often-repeated term "predatory lending" apparently carries a wide variety of meaning in the mortgage market, depending on the context in which it is used.

Up to 20 million people, thousands of whom are already displaced from their homes following the devastating Chinese earthquake, are at increased risk from flooding and major power shortages in the massive Sichuan Basin over the next few decades and possibly centuries.

Dr Alex Densmore, a geographer from Durham University, makes the observations on returning from carrying out investigative fieldwork in the China earthquake zone, where nearly 100,000 people were killed in May 2008. He has been studying the active faults in Sichuan for the past eight years.

GALVESTON, Texas — University of Texas Medical Branch at Galveston researchers have discovered a key biochemical link in the process by which the Ebola Zaire virus infects cells — a critical step to finding a way to treat the deadly disease produced by the virus.

Wireless Sensor Networks (WSNs) used to detect and report events including hurricanes, earthquakes, and forest fires and for military surveillance and antiterrorist activities are prone to subterfuge. In the International Journal of Security and Networks, computer scientists at Florida Atlantic University describe a new antihacking system to protect WSNs.

Batavia, Ill. - Physicists of the DZero experiment at the U.S. Department of Energy's Fermi National Accelerator Laboratory have discovered a new particle made of three quarks, the Omega-sub-b (Ωb). The particle contains two strange quarks and a bottom quark (s-s-b). It is an exotic relative of the much more common proton and weighs about six times the proton mass.

COLUMBUS, Ohio -- One of the few studies to look at the effects of religious participation on the mental health of minorities suggests that for some of them, religion may actually be contributing to adolescent depression.

Previous research has shown that teens who are active in religious services are depressed less often because it provides these adolescents with social support and a sense of belonging.

ATLANTA, September 3, 2008– A landmark government study suggests nearly one in two people (46%) will develop painful knee osteoarthritis over their lifetime, with the highest risk among those who are obese. According to the Arthritis Foundation, the study underscores the immediate need for the public to understand what they can do to reduce the tremendous pain, disability and cost associated with arthritis.