World Topics

May 1, 2016

Worsening depression may be early symptom of dementia

People over 54 who suffer from steadily worsening depression may run a higher risk of developing dementia, according to research published Saturday, and it may be an early symptom. One-time or recurring types of depression do not appear to pose a similar threat. “Only ...

Kenya burns record ton of ivory, warns poachers

May 1, 2016

Kenya burns record ton of ivory, warns poachers

Kenya’s president set fire Saturday to 105 tons of elephant ivory and more than 1 ton of rhino horn, believed to be the largest stockpile ever destroyed, in a dramatic statement by this East African country against the trade in ivory and products from ...

Apr 29, 2016

Zika virus test gets U.S. approval

Quest Diagnostics has received emergency authorization from the U.S. Food and Drug Administration to sell the first commercially developed diagnostic test for Zika in the United States, a step that may help expand testing capacity and speed diagnosis of the virus. Previously, the only ...

Bearded dragon nightmare: REM episodes suggest lizards dream

Apr 29, 2016

Bearded dragon nightmare: REM episodes suggest lizards dream

Research in a German laboratory involving five lizards called Australian bearded dragons indicates that these reptiles may dream and could prompt a fundamental reassessment of the evolution of sleep. Scientists said on Thursday they have documented for the first time that reptiles, like people, ...

Apr 28, 2016

Antibody holds promise in HIV treatment

Just one shot of a lab-produced antibody protected macaques against a sort of monkey HIV for nearly six months, said a study Wednesday into a potential vaccine alternative. Exposed to simian HIV (SHIV) once a week, nontreated monkeys contracted the virus after just three ...