Why do women live longer than men?

Women live longer than men. This simple statement holds a tantalizing riddle that Steven Austad, Ph.D., and Kathleen Fischer, Ph.D., of the University of Alabama at Birmingham explore in a perspective piece published in Cell ...

It's raining men! Sweden sees historic gender balance shift

Famous for its efforts to put women on an equal footing with men, Sweden is experiencing a gender balance shift that has caught the country by surprise: For the first time since record-keeping began in 1749, it now has more ...

Is aging inevitable? Not necessarily for sea urchins

Sea urchins are remarkable organisms. They can quickly regrow damaged spines and feet. Some species also live to extraordinary old ages and—even more remarkably—do so with no signs of poor health, such as a decline in ...

New study shows rich, poor have huge mortality gap in US

Poverty in the U.S. is often associated with deprivation, in areas including housing, employment, and education. Now a study co-authored by two MIT researchers has shown, in unprecedented geographic detail, another stark ...

Bumblebees use nicotine to fight off parasites

Researchers from Queen Mary University of London (QMUL) and Royal Holloway, University of London (RHUL), gave bumblebees the option to choose between a sugar solution with nicotine in it and one without. Those bees infected ...

Inheritance of lifespan is sex-dependent in fruit flies

Like mother, like daughter; like father, like son. Evolutionary biologists at the universities in Bielefeld and Uppsala (Sweden) have now shown that this proverb also applies to inheriting a long life – at least for fruit ...

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