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A new study provides "incontrovertible evidence" that the volcanic super-eruption of Toba on the island of Sumatra about 73,000 years ago deforested much of central India, some 3,000 miles from the epicenter, researchers report. (2009-11-24)
Were dinosaurs "warm-blooded" like present-day mammals and birds, or "cold-blooded" like present day lizards? The implications of this simple-sounding question go beyond deciding whether or not you'd snuggle up to a dinosaur on a cold winter's evening. (2009-11-11)
The hormones, called androgens, are important in the development of masculine characteristics such as aggression and strength. (2009-11-05)
The so-called "silver spoon" effect -- in which wealth is passed down from one generation to another -- is well established in some of the world's most ancient economies. (2009-10-30)
A new study by Oregon State University researchers shows that those in poverty in rural Oregon often know what kinds of foods they should be eating, but face tough choices between eating well and spending less money for meals. (2009-10-28)
