Social Science

A fruit fly starts buzzing around food at a picnic, so you wave your hand over the insect and shoo it away. But when the insect flees the scene, is it doing so because it is actually afraid? Using fruit flies to study the basic components of emotion, a new Caltech study reports that a fly's response to a shadowy overhead stimulus might be analogous to a negative emotional state such as fear—a finding that could one day help us understand the neural circuitry involved in human emotion.

Lack of quality demographic data is a major obstacle to planning infrastructure in the developing world. In a recent study, a team of researchers from the Santa Fe Institute in the U.S., the University of Manchester in the U.K., and the Université Cheikh Anta Diop in Senegal used anonymized cell phone data to assess the feasibility of electrification options for rural communities in Senegal.

With Apple's launch of new health tracking tools for the iPhone and medical researchers' forays into Facebook to recruit clinical trial volunteers, Web and mobile apps are increasingly seen as a new source for health data.

Scientists have found antibiotic resistance genes in the bacterial flora of a South American tribe that never before had been exposed to antibiotic drugs. The findings suggest that bacteria in the human body have had the ability to resist antibiotics since long before such drugs were ever used to treat disease.















