Uncategorized
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19909
The photo illustrated in this article does not show a golden eagle. The bill of a golden eagle is black on the outer half and pale blue at the base, and the feathers on the back of its head are bright tawny. It could be a white-tailed eagle, a very close relative of the bald […]
- Animals
Hatch a Thief: Brains incline birds toward a life of crime
When it comes to a bird family's propensity to pilfer, a larger than usual brain for a particular body size is more important than body size alone.
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- Anthropology
Ancient Ailment? Early human may have carried tuberculosis
A 500,000-year-old Homo erectus skull from Turkey may show telltale signs of tuberculosis, by far the earliest such evidence of the disease.
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Cells’ innards may share origin
Many of the internal structures of a cell may have evolved from an ancient, simpler compartment.
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Escaping flatland
Growing cells in gelatinous materials gains in popularity as more researchers realize how the three-dimensional arrangement of cells influences cell behavior—and increases the relevance of experiments.
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Cell’s core pore structure solved
Scientists working in yeast have deciphered the structure of the complex cluster of proteins that regulates access to the nucleus of cells.
- Animals
Female antelopes take the lead in courtship
Topi antelopes, with their hesitant males, reverse the usual sex roles in mammal courtship.
- Health & Medicine
Big kids at risk for heart disease
Overweight children grow up to have an elevated risk for blocked coronary arteries as adults, a long-term Danish study finds.
- Health & Medicine
The Long Road to Beta Cells
In their quest to cure type 1 diabetes, scientists are finding that turning stem cells into insulin-producing beta cells is a lot harder than it first appeared.
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19908
This article talks of restoring prairies to an earlier state, but if the concepts summarized in Charles C. Mann’s book 1491: New Revelations of the Americas Before Columbus are even within shouting distance of reality, the “native prairie” being pursued by some represents a fleeting moment in time created by the destruction of a civilization […]
- Ecosystems
Prairie Revival
Prairie restoration is attracting interest, but because so little long-term monitoring and comparative studies have been done, researchers are still wondering whether it's really possible to re-create a prairie.
