Bionic hands nearly as good as transplants

Feb 25, 2015

Bionic hands nearly as good as transplants

European surgeons and engineers have devised a mind-controlled bionic hand that restores function almost as well as a flesh-and-blood transplant but without the risk of rejection, a research paper said Wednesday. The three Austrian beneficiaries of the unprecedented technique had been in car and ...

Feb 25, 2015

Biologists lift lid on eyelash mystery

Why do humans and other mammals have eyelashes? Experts have been batting rival theories around for years. Eyelashes are dust catchers, snaring things that would otherwise drift into the eye, went one idea. Or they were sensors, acting like a cat’s whiskers, to warn ...

Feb 24, 2015

World's diet worsening with globalization, study finds

The world’s diet has deteriorated substantially in the last two decades, a leading nutrition expert said on Monday, citing one of the largest studies available on international eating habits. Poor countries in sub-Saharan Africa and Asia are seeing the fastest increases in unhealthy food ...

Feb 19, 2015

Scientists smoke out 'munchies' mystery

People who empty the refrigerator after smoking cannabis can blame their cravings on brain cells that normally suppress appetite, said a study published Wednesday in the journal Nature. Researchers using genetically modified mice pinpointed circuitry in the hypothalamus that is affected by the active ...

Map of 'epigenome,' a second genetic code, unveiled

Feb 19, 2015

Map of 'epigenome,' a second genetic code, unveiled

Scientists for the first time have mapped out the molecular switches that can turn genes on or off in the DNA in more than 100 types of human cells, an accomplishment that reveals the complexity of genetic information and the challenges of interpreting it. ...

Chemicals in nectar can fight bee disease: study

Feb 19, 2015

Chemicals in nectar can fight bee disease: study

Flower nectar contains a bouquet of chemicals that may help fight parasite infection in bumblebees, a study said Wednesday. The findings throw up clues for helping honeybee colonies that are battling mysterious but catastrophic decline. Biologists in New England tested eight nectar compounds on ...

Feb 18, 2015

Germany's 'Dr. Death' opens corpse museum in Berlin

German anatomist Gunther von Hagens, who has been dubbed “Doctor Death” for preserving and displaying dead bodies as artworks, opens a museum Wednesday in Berlin to showcase the grisly exhibits. After 20 years of touring the world with his show, and frequently courting controversy, ...