Uncategorized
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Mental Meeting of the Sexes: Boys’ spatial advantage fades in poor families
The frequently observed superiority of boys to girls on tests of spatial skill disappears in children of poor families, indicating that this mental ability responds more sensitively to environmental influences than has been assumed.
- Paleontology
Ancient Grazers: Find adds grass to dinosaur menu
Analyses of fossilized dinosaur feces in India reveal the remains of at least five types of grasses, a surprising finding that's the first evidence of grass-eating dinosaurs and an indication that grasses diversified much earlier than previously recognized.
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19614
The picture caption in this article states, “This phytolith, which was extracted from fossilized dinosaur dung unearthed in India, indicates that the reptiles dined on grasses.” I do believe that dinosaurs aren’t classified as reptiles. Patricia GriffithAmerican Canyon, Calif. Confusion in this area stems from the fact that not all ancient reptiles were dinosaurs. But […]
- Health & Medicine
Our big fat cancer statistics
A new analysis of data from a 2002 report shows that obesity is the second-largest cause of cancer in the United States.
- Health & Medicine
Wearing your food
A broccoli extract, applied to the skin, has been found to reduce the incidence of skin tumors in mice.
- Health & Medicine
Dairy fats cut colon cancer risk
High-fat dairy foods appear to confer protection against colon cancer.
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19613
Several decades ago, I heard of the anecdotal correlation between the rise of hydrogenated oils in our foods and the rise of colon cancer. The Swedish study mentioned in this article that correlated high dairy-fat intake with lower risk of colon cancer might be reexamined to see if it reveals a correlation between intake of […]
- Earth
Sex and the sewage
Chemicals in sewage sludge appear to have stunted the testes and fostered other reproductive-system changes in fetal lambs.
- Health & Medicine
Monthly cycle changes women’s brains
Activity in a brain region that regulates emotions fluctuates over the course of a woman's menstrual cycle.
- Planetary Science
Cassini snaps icy moon Dione
Saturn's small moon Dione has a heavily-cratered, fractured surface.
- Humans
Katrina’s Fallout
Scientists whose laboratories were devastated by Hurricane Katrina have found help, and sometimes safe havens for their studies, from colleagues around the nation.
- Planetary Science
Groovy Science
The Cassini spacecraft is shedding new light on Saturn's icy rings.
