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The last remnants of America's once-great grasslands are yielding clues to those working to conserve and restore the prairie ecosystem. Biodiversity appears critical, but figuring out how to re-create and maintain it is proving to be a challenge. (iStockphoto)
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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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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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A ring of proteins forms around the "waistlines" of cells to contract and split the cells in two, and scientists have now discovered how that ring self-assembles.
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The Milky Way galaxy possesses a distinct outer halo that orbits in the opposite direction from its inner halo and the rest of the galaxy.
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Astronomers have discovered 27 faint, run-of-the-mill galaxies from the early universe that may be some of the building blocks of giant galaxies such as the Milky Way.
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Signals in optical fibers can combine into rare, short-lived spikes that resemble oceanic rogue waves.
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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.
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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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Overweight children grow up to have an elevated risk for blocked coronary arteries as adults, a long-term Danish study finds.
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Topi antelopes, with their hesitant males, reverse the usual sex roles in mammal courtship.
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Scientists working in yeast have deciphered the structure of the complex cluster of proteins that regulates access to the nucleus of cells.
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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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Many of the internal structures of a cell may have evolved from an ancient, simpler compartment.
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