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Neanderthal innovation surprises archaeologists

It was previously believed that Neanderthals developed tools and ornaments solely through contact with supposedly more advanced Homo sapiens, but new research from the University of Colorado Denver shows that these sturdy ancestors could adapt, innovate and evolve technology on their own. The findings, appearing in the Journal of Archaeological Method and Theory, challenge the […]

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Menstrual Suppression OK, Say Doctors




Forty years ago, when birth control pills first hit the market, the recommended cycle was three weeks of active contraceptive pills followed by one week of placebos or no pills. But now, many gynecologists believe that the week without contraception – during which a woman experiences a “withdrawal bleed” that mimics the normal menstrual cycle […]




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astronau

Fighting Fit For Space Travel




The suppression of the human immune system in space was first observed forty years ago during the Apollo missions when more than half the astronauts reported a bacterial or viral infection either during or shortly after their mission. To further study the effects of micro-gravity on the immune system, a shuttle flight in 1991 carried […]




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oceanwaves

Massive Salinity Changes In Oceans




Tropical ocean waters have become dramatically saltier over the past 40 years, while oceans closer to Earth’s poles have become fresher, scientists report in the journalNature. These large-scale, relatively rapid oceanic changes suggest that recent climate changes, including global warming, may be altering the fundamental planetary system that regulates evaporation and precipitation and cycles fresh […]




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