News
- Anthropology
Walking Small: Humanlike legs took Homo out of Africa
Newly discovered fossils, 1.77 million years old, show that the earliest known human ancestors to leave Africa for Asia possessed humanlike legs, feet, and spines, but strikingly small brains and primitive arms.
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One tall gene
The first reported gene for height can account for almost a centimeter of difference among people who have different versions of it.
- Earth
Meteor dust layers taint Antarctic ice
Two layers of deep Antarctic ice, each hundreds of thousands of years old, are rich in meteoritic dust.
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SSRI use declines, youth suicides rise
In the United States and the Netherlands, youth suicides have increased as the number of antidepressant prescriptions for children and teenagers has fallen, raising concerns that regulatory warnings about these drugs have backfired.
