5,012 results
- Animals
African cicadas warm up before singing
The first tests of temperature control in African cicadas have found species with a strategy that hogs energy but reduces the risk of predators.
- Health & Medicine
When It’s No Longer Baby Fat
Increasingly, children are plump by the time they enter school, and they get fatter as they grow.
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- Animals
Sexual conflict pushes species making
A novel comparison of 25 pairs of insect lineages finds that sexual conflict plays more of a role in making new species than scientists had realized.
- Health & Medicine
Testing Times
Relying in part on a new rapid HIV test, health officials are working to identify and treat more HIV infections earlier in the course of the disease.
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Buyer Beware
A growing number of psychological studies conclude that excessively materialistic values undermine happiness and well-being, although the emotional effects of pursuing money and fancy possessions remain controversial.
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Mental ills attract alternative therapies
A substantial minority of people suffering from mental ailments seek out alternative treatments, such as herbal medicines and nutritional regimens, usually without telling their physicians.
- Animals
Snapping shrimp whip up a riot of bubbles
High-speed video and fancy math demonstrate that snapping shrimp make so much noise by popping bubbles.
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Human RNA genes counted up
People possess about 250 genes that encode short RNA strands rather than DNA.
- Chemistry
Drug smugglers leave cellular tracks
Imaging reveals where some experimental nanoscale capsules ferry drugs when they enter cells.
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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.
- Physics
Hot Mama: Has matter’s mother paid a call?
Physicists have found new signs that fiery particle collisions within a giant accelerator 2 years ago created a state of matter identical to what might have been the stuff of the newborn universe.
