6,813 results
6,813 results for: Insects
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This article ends with the remark, “overall, ‘coercion plays a more important role than kinship in favoring cooperation in insect societies.'” But there’s no proof in the article of this being true in the wasps’ activities overall. Only some of their egg handling is mentioned. If the conclusion is true, it overthrows 40 years of […]
- Humans
Letters from the February 12, 2005, issue of Science News
Short end of the chromosome Since “women with chronically ill children generally reported more stress” and since “there was a very striking connection between stress and telomere length” (“Stressed to Death: Mental tension ages cells,” SN: 12/4/04, p. 355), isn’t it probable that there is a strong connection between telomere length and becoming the parent […]
- Animals
Cops with Six Legs
Insects commit crimes against their colonies, and researchers are taking a closer look at how these six-legged criminals get punished.
- Earth
Blowflies shed mercury at maturity
Blowflies that absorb mercury from fish carcasses they feed on as larvae rid themselves of much of that toxic metal when they become adults.
- Health & Medicine
Codes for Killers: Knowledge of microbes could lead to cures
Scientists have deciphered the DNA of the parasites responsible for African sleeping sickness, Chagas' disease, and leishmaniasis.
- Earth
Warm Spell: Arctic algae record shift in climate
Analyses of sediment samples taken from remote arctic lakes indicate that the climate across large swaths of the Northern Hemisphere has been warming for many decades.
- Health & Medicine
Swallowed a Fly: Insects may spread foodborne microbe to chickens
Flies sucked through the ventilation ports of industrial chicken coops may spread the pathogen Campylobacter jejuni, which can ultimately sicken people who eat undercooked chicken.
- Humans
From the March 30, 1935, issue
Dust storms over Washington, D.C., 300 successive generations of fruit flies, and the world's oldest cemetery.
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Poisonous Partnership
Tools from molecular biology are providing new insights into the viruses employed by parasitoid wasps to manipulate their caterpillar hosts.
- Physics
Tense encounters drive a nanomotor
Exploiting the relative strength of surface tension forces in the world of tiny objects, a novel type of nanomotor creates a powerful thrust each time molten metal droplets merge.
- Earth
Farmers without Fungus: How to store peanuts to reduce toxins
African peanut farmers can more than halve their exposure to a class of harmful fungal toxins called aflatoxins by adopting several simple measures after harvest.
- Earth
Bed of Armor: Large rocks hold fast in flooding streams
The relative proportions of rocks of various sizes in gravel-lined streams remain constant, even during substantial floods.
