Search Results for: Bears
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6,905 results for: Bears
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NeuroscienceLegalization trend forces review of marijuana’s dangers
Marijuana legalization advocates tout pot’s medicinal benefits and low addictiveness, while critics point to its neurological dangers. Research shows that the reality is somewhere in the middle.
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Health & MedicineMom’s nutrition puts a stamp on baby’s DNA
A new study is the latest in a growing list of how the environment sculpts a person’s epigenome.
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ClimateGlacial microbes gobble methane
While some bacteria produce methane in Greenland’s melting ice sheet, others may consume the greenhouse gas as it escapes.
By Beth Mole -
ArchaeologyWritten in bone
Researchers are reconstructing the migrations that carried agriculture into Europe by analyzing DNA from the skeletons of early farmers and the people they displaced.
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MicrobesOne giant leap for zit-causing microbes
A bacterium that lives on humans and causes acne also hopped to domesticated grapevines and relies on the plant for crucial DNA repairs.
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AstronomyEarth-sized planet found in star’s habitable zone
Astronomers have found a potentially habitable Earth-sized planet around a cool red star.
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Planetary ScienceThe ice of a distant moon
Jupiter’s moon Europa hides a liquid ocean, and conceivably life, under kilometers of ice. The challenge for engineers is how to penetrate that frozen barrier with technology that can be launched into space and operated remotely.
By Meghan Rosen -
GeneticsBank voles provide clue to prion disease susceptibility
A protein from bank voles makes mice susceptible to disorders that wouldn’t otherwise infect them.
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LifeThe name of the fungus
A rebellion has broken out against the traditional way of naming species in the peculiar, shape-shifting world of fungi.
By Susan Milius -
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I think it’s more than coincidental that the sound repertoire of babbling babies, compared with the speech sounds in a diversity of languages across the world, lends credence to the idea that there was a mother tongue that goes back to prehistoric times. Readers of the Bible will recall that it was after the fall […]
By Science News -
Health & MedicineHormone wards off immune cells in womb
A hormone known for its involvement in the brain's response to stress also plays a key role in shielding the developing embryo from its mother's immune system.
By Ben Harder -
PaleontologyFossils Indicate. . .Wow, What a Croc!
Newly discovered fossils of an ancient cousin of modern crocodiles suggest that adults of the species may have been dinosaur-munching behemoths that grew to the length of a school bus and weighed as much as 8 metric tons.
By Sid Perkins