6,913 results
6,913 results for: Bears
- Health & Medicine
Whooping cough bounces back
A new type of pertussis vaccine introduced in the late 1990s may have led to the return of a disease that was nearly eradicated 40 years ago. Public opposition to vaccination hasn’t helped matters.
- Life
The name of the fungus
A rebellion has broken out against the traditional way of naming species in the peculiar, shape-shifting world of fungi.
- Archaeology
Written 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.
- Planetary Science
The 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.
- Neuroscience
Legalization 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.
- Health & Medicine
Mammography’s limits becoming clear
It may be time to move way from blanket recommendations about mammography and empower women to decide for themselves, new work suggests.
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- Planetary Science
NASA bets on asteroid mission as best path to Mars
NASA wants to bag an asteroid using robotic arms or an enormous sack and place the rock in the moon’s orbit for study. This may keep astronauts working but not, as NASA claims, get them Mars-ready.
- Materials Science
A new carbon nanotool springs to life
Physicists have pulled out the inside cylinders of multiwall carbon nanotubes, as if expanding a telescope, indicating how the devices may serve as tiny bearings and springs in future nanomachines.
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Promiscuity in guppies has its virtues
Mating with multiple partners benefits the female Trinidadian guppy and her offspring by reducing gestation time and producing youngsters more adept at forming protective schools and at evading capture.
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Moms and pups sniff out immune genes
Genes involved in the immune system also create individualized body odors that allow parents and offspring to recognize each other.
