Search Results for: Butterflies
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1,043 results
1,043 results for: Butterflies
- Animals
Butterflies’ tidy drinking tricks
The long tube of the insects' mouthparts is fluid friendly only at the tip.
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From the July 25, 1931, issue
98-TON BUTTERFLY VALVE, A SIMPLE DEVICE A good place for a photographer to take a picture, this penstock will be serving an even better purpose when it begins to carry water through the dam to turn the huge turbines of the Ruskin power plant, British Columbia. The flow of water through this 19-foot-diameter intake pipe […]
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18973
“Bt corn risk to monarchs is ‘negligible'” is full of manipulative words. How exactly was the “highly polarized atmosphere surrounding genetically modified crops . . . hampering attempts to rationally plan and evaluate research”? The companies that make the strains of corn discussed in the article are not named, of course. Nor are any ties […]
- Humans
Letters from the February 10, 2007, issue of Science News
Grape gripe “A Toast to Healthy Hearts: Wine compounds benefit blood vessels” (SN: 12/2/06, p. 356) leaves us up in the air with this statement: “. . . since the traditional wine-making techniques still in use in southwestern France and Sardinia increase concentrations of polymeric procyanidins, he says, other vintners may soon adopt such methods.” […]
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18938
In grad school, I read and learned from Ernst Mayr’s Populations, Species, and Evolution (1963, 1970, Harvard University Press). I think that “Alarming butterflies and go-getter fish” extremely simplifies Mayr’s position on speciation. The article says that Mayr focuses solely on geographic separation, “allopathic speciation.” This ignores the fact that Mayr discussed a variety of […]
- Math
Tomorrow’s catch
A biologist who formerly applied his mathematical talents in finance has developed new ways of predicting the ups and downs of fish populations.
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