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19801
This article describes an elegant study. I found the 7 percent addiction-susceptible figure interestingly similar to the 10 percent of people who drink alcohol who become addicted. I wonder if similar percentages of other species are impulsive and vulnerable. Ellen WaggenerPoughkeepsie, N.Y.
- Planetary Science
Stormy Weather in Space: Craft take panoramic view of solar eruptions
Twin spacecraft have for the first time tracked solar storms, known as coronal mass ejections, from their birth in the lower depths of the sun's atmosphere all the way to Earth's orbit.
- Animals
Snail Highways: By following trails, periwinkles save slime
A snail that follows another snail's slimy path saves energy by not having to secrete so much mucus.
