Uncategorized
- Life
Bacteria can cause pain on their own
Microbes caused discomfort in mice by activating nerves, not the immune system.
- Animals
Birds know road speed limits
Crows, house sparrows and other species judge when to flee the asphalt by average traffic rates rather than an oncoming car's speed.
- Psychology
Blood marker may predict suicide
People who killed themselves had higher levels of a gene involved in cell death.
- Astronomy
Pictures of young star show unusual outbursts
Ejections from stellar newborn move faster and in different directions than astronomers thought.
- Ecosystems
Aging European forests full to the brim with carbon
Trees' capacity to sequester carbon dioxide from the atmosphere is dwindling.
- Plants
Dastardly daisies
This flower isn’t just any old sex cheat. It can be sexually deceptive three ways and in 3-D.
- Health & Medicine
Power of sugar may come from the mind
Only people who believe exertion zaps willpower get a boost from glucose.
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Killer whales, grandmas and what men want: Evolutionary biologists consider menopause
Menopause seems like a cruel prank that Mother Nature plays on women. First come the hot flashes, night sweats, vaginal dryness, irregular periods, irritability and weight gain. Then menstruation stops and fertility ends. Why, many women ask, must they suffer through this? Evolutionary biologists, it turns out, ask themselves more or less the same question. […]
- Climate
Flood damage to cost up to $1 trillion per year by 2050
Coastal cities with growing populations will be inundated by sea level rise.
- Life
Years or decades later, flu exposure still prompts immunity
New forms of influenza viruses can spur production of antibodies to past pandemics in people who lived through them.
- Life
To make biofuel, cut the lignin
Researchers disable key protein making plant sugars easier to access.
- Materials Science
Toylike blocks make lightweight, strong structures
Bucking trend toward reducing numbers of parts, MIT engineers suggest building planes from thousands of identical pieces.
