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AnimalsSumo wrestling keeps big ants in line
In a Malaysian ant species, the large workers establish a hierarchy by engaging in spectacular shaking contests.
By Susan Milius -
EarthSatellites show Earth is greener
Daily observations from space for nearly 2 decades indicate that our planet is getting greener.
By Sid Perkins -
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Lowered melatonin secretion was an implied factor in the 35 percent increase in colon cancer among night shift nurses, compared with their daytime counterparts. A couple of altered lifestyle factors may contribute, as well: The night shift is often occasion for a sedentary work style, and decreased alertness might even affect daytime activity. Also, there […]
By Science News -
EarthSecond cancer type linked to shift work
Women who have worked at least a few nights a month for many years appear to face a somewhat increased risk of colorectal cancer.