News
- Ecosystems
Ultimate Sea Weed Loose in America
The unusually invasive strain of seaweed that has been smothering coastal areas of the Mediterranean has shown up in a California lagoon, the first sighting of this ecologically devastating alga in the Americas.
- Health & Medicine
Carbon monoxide may limit vascular damage
Carbon monoxide given in small doses to rats can prevent injury to blood vessels caused by surgery.
- Archaeology
Farming sprouted in ancient Ecuador
Analyses of microscopic plant remains from two archaeological sites indicate that people began to grow squash in Ecuador's lowlands between 10,000 and 9,000 years ago, when agriculture was also taking root in Mexico.
- Health & Medicine
Being a dad comes naturally
Men whose wives are about to give birth show hormonal fluctuations that may predispose them to better parenting behavior.
- Health & Medicine
Heart risks linked to infertility syndrome
Women with polycystic ovaries—commonly linked to infertility—are more likely than women without the disease to show early signs of heart disease.
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Trilobites might have invented farming
A close look at fossils raises the possibility that a type of trilobite farmed bacteria.
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Weevils pick on someone their own size
A horned weevil can't pick a real fight with a male too big for him because the bigger one can't get a good grip.
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Why is that wasp helping?
Researchers have found nests of a social insect with helpers that are neither close kin nor slaves.
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Energy-efficient brains
Successful problem solving depends on a brain that efficiently lessens its workload rather than laboring harder.
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Checking up on abuse memories
An unusual trove of evidence in a criminal case supports the accuracy of recall of childhood sexual abuse.
- Astronomy
Gamma-ray craft plunges into Pacific
As planned, NASA's Compton Gamma Ray Observatory, which had detected some of the highest-energy radiation in the universe for 9 years, crashed into the Pacific Ocean on June 4.
- Astronomy
Stars’ wobbles reveal six more planets
Swiss astronomers have found indirect evidence of six additional planets that lie outside the solar system, bringing the tally to more than 40.
