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科学美国人60秒 SSS Guppy Groups Provide Friendly Protection against Foes
Humans aren't the only species that forms friendships. Lots of animals prefer to spend their time only with certain individuals. It's all very well showing that you do get social relationships and social bonds forming, but why on earth would you form
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科学美国人60秒 SSS Vision Needed to Curb Nearsightedness Epidemic
So were inside, were in fake lighting, were not spending as much time outside in the context in which our visual system evolved. Amanda Melin, assistant professor of anthropology archaeology and of medical genetics at the University of Calgary. And a
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科学美国人60秒 SSS Fermented Foods Find Fervent Advocate
There are sort of three main ways that our species has developed to break down foods, or process foods, in a primordial way. And that is by cooking, by fermenting foods and by drying them or desiccating them. Paul Breslin, professor of nutritional sc
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科学美国人60秒 SSS Blood Cells Remember Your Mountain Vacation
Head to the mountains, and if the steep trails don't slow you down, the thin air will. There's less oxygen up thereso strenuous activity can leave you dizzy, out of breathor worse. But even though you're beat, biochemical processes are already busy a
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科学美国人60秒 SSS Medical Marijuana Faces Fed's Catch-22
Medical marijuana is now available in 28 states. But a big obstacle to research on marijuana as medicine is that its listed by the federal government on whats called Schedule I. Assignment to Schedule I means that the Food and Drug Administration doe
