Study suggests how mosquitoes evolved an attraction to human scent
The female mosquitoes that spread dengue and yellow fever didn't always rely on human blood to nourish their eggs. Their ancestors fed on furrier animals in the forest. But then, thousands of years ago, some ...
Rabbits kept indoors could be vitamin D deficient
Rabbits that remain indoors may suffer from a lack of vitamin D, researchers report in a new study. In rabbits kept as pets or used in laboratory studies, the deficiency could lead to dental problems, undermine ...
Serving historical flora to a worldwide audience
Biological researchers wield some powerful new tools these days, capable of measuring minute quantities of DNA, protein and small molecules in living systems. Mapping the networks of the ebb and flow of these ...
Study finds chemical behind cancer resistance in naked mole rats
Two researchers at the University of Rochester have discovered the chemical that makes naked mole rats cancer-proof. Their research paper will be published this week in the journal Nature.
Genomic assay as an alternative to animal testing
The method developed by the group in Lund is based on human cells grown in a laboratory. The cells are exposed to a chemical and then parts of their genetic content are filtered out and transferred to a microchip.
Mutant mosquitoes lose their appetite for humans
(Phys.org) —What draws a mosquito to bite its host has long been studied from the perspective of the victim—uncovering which smells and chemicals lure the insect in. But researchers at Rockefeller's Laboratory ...
PCs out as Senegal opens world's first tablet cafe
Among the washer women, carpenters, busy waiters and squabbling children sweltering under the midday sun on this dusty Dakar street an Internet revolution is taking place in the world's first tablet cafe.
Project aims to track big city carbon footprints
Every time Los Angeles exhales, odd-looking gadgets anchored in the mountains above the city trace the invisible puffs of carbon dioxide, methane and other greenhouse gases that waft skyward.
Subordinate animals as guinea pigs
Subordinate animals must face higher risks than dominant ones Dominant meerkat females yield to their subaltern group members when faced with a dangerous obstacle: as a group of these animals reaches a road, ...
Six degrees of inclination
(Phys.org)—Stay in a tilted bed for weeks with your head at the lower end and your body starts to change as if it were ageing prematurely or living in space. Twelve volunteers in ESA's bedrest study are ...
British student avoids US extradition over TV website
A British student who created a website that let people watch films and television shows for free has struck a deal with the United States to avoid extradition, London's High Court heard on Wednesday.
Implantable medical devices powered by the ear itself
Deep in the inner ear of mammals is a natural battery—a chamber filled with ions that produces an electrical potential to drive neural signals. In today's issue of the journal Nature Biotechnology, a team ...
Small winners in the mammalian race to evolve
It takes at least 10 times as many generations for a mouse to reach elephantine proportions as for the reverse transition, reveals a vast study of mammalian evolution over the past 70 million years.
Laser-powered 'needle' promises pain-free injections
From annual flu shots to childhood immunizations, needle injections are among the least popular staples of medical care. Though various techniques have been developed in hopes of taking the "ouch" out of ...