5,121 results
5,121 results for: seek
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Heat-Seeking Missiles: Sperm may follow rising temperature to egg
In a process called thermotaxis, sperm cells may use a temperature gradient in the fallopian tubes to find their way to an unfertilized egg.
- Earth
Putting Whales to Work: Cetaceans provide cheap labor in the icy deep
Whales equipped with environmental sensors discover warm water beneath Arctic ice.
- Health & Medicine
Mixed Results: AIDS vaccine falters in whites, may help blacks
In its first large test, an AIDS vaccine has failed to shield an at-risk population from acquiring AIDS.
- Health & Medicine
Portrait of a cancer drug at work
Newly revealed protein structures show how a breast cancer drug functions.
- Health & Medicine
Protein protects rat brains from strokes
Neuroglobin, a protein related to hemoglobin, may protect the brain during strokes.
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By a Nose? Human sperm may sniff out the path to an egg
A man's sperm appear to possess a primitive kind of nose that enables them to navigate to a woman's egg by scent.
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Human RNA genes counted up
People possess about 250 genes that encode short RNA strands rather than DNA.
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Egg’s missing proteins thwart primate cloning
Scientists have identified a reason why cloning a person may be difficult, if not impossible.
- Earth
A Nation Aflame
In the wake of one of the worst fire seasons in the past 50 years, scientists are assessing risk as more people move into fire-prone areas and developing ways to better predict the behavior of--and the potential for--wildfires.
- Astronomy
Mining the Sky
A proposed national virtual observatory, a mammoth computer database integrating spectra, images, and other information covering the entire sky, could usher in a new age of discovery in astronomy.
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Why Fly into a Forest Fire?
Scientists puzzle over why some wasps and beetles race to forest fires.
- Physics
Jiggling the Cosmic Ooze
Spurred by the first tentative sightings after a decades-old search, physicists seeking the universe's mass-giving particle — the Higgs boson — have fired up the world's highest-energy particle collider to join the pursuit.
