World Topics

World's smallest porpoise near extinction in Mexico

May 14, 2016

World's smallest porpoise near extinction in Mexico

Environmentalists warned Friday that Mexico’s vaquita marina, the world’s smallest porpoise, is close to extinction after the government reported that only 60 were found late last year. The population has dramatically dropped despite the arrival of navy reinforcements in the upper Gulf of California ...

Bacteria the yin and yang of dandruff, says study

May 13, 2016

Bacteria the yin and yang of dandruff, says study

Dandruff is not caused by a fungus, as many believe, but by an imbalance between two competing bacteria that naturally colonize the human scalp, according to a study released Thursday. Think of propionibacterium and staphylococcus as the yin and yang of healthy hair: when ...

May 12, 2016

Study links genes to level of education

Scientists said Wednesday they had identified 74 genes that partially determine how far someone gets in school, depending on which variant of those genes a person possesses. Compared to environmental factors such as diet, family circumstances and opportunity, this hard-wiring has only a meager ...

Zika invades placenta, brain of fetus in mice tests

May 12, 2016

Zika invades placenta, brain of fetus in mice tests

Experiments using lab mice show how the Zika virus travels through the bloodstream, multiplies in the placenta and invades the brain of the developing fetus, stunting growth or causing death, researchers said Wednesday. A pair of studies, one published in the journal Cell and ...