6,698 results
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Parasite Pursuit: Sand fly coughs up leishmania protozoan’s secrets of proliferation
A parasite spread by the sand fly secretes gel into the throat of the fly, which then regurgitates it when it bites a person, spreading the infection.
- Animals
Paper wasps object to dishonest face spots
Female wasps with dishonest faces, created by researchers who altered the wasps' natural status spots, have to cope with extra aggression.
- Health & Medicine
Beer’s Well Done Benefit
Beer may prove therapeutic for diners who prefer their meat cooked until it's well done.
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19457
I am wondering why the subject of genetically modified crops didn’t enter the discussion of diminishing plant diversity in this article. When genes from bacteria, insects, and other totally unrelated organisms are inserted into the genome of a plant, we have no idea what effect this will have on plant diversity and survival. The effect […]
- Plants
Green Red-Alert: Plant fights invaders with animal-like trick
Mustard plants' immune systems can react to traces of bacteria with a burst of nitric oxide, much as an animal's immune system does.
- Paleontology
Early Flight? Winged insects appear surprisingly ancient
New analyses of a fossil suggest that winged insects may have emerged as early as 400 million years ago.
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Flies ‘R’ Us: Fruit fly cells mimic the mammalian pancreas
A new study suggests that the common fruit fly has cells that function much as those in the human pancreas do.
- Humans
Letters from the January 22, 2005, issue of Science News
Timely comments The researchers featured in “Summer births linked to schizophrenia” (SN: 11/6/04, p. 301) suggest that a higher incidence of schizophrenia may be due to summer-related infections “or other seasonal factors.” June and July births would have been in early gestation during late fall and winter, when there is increased incidence of depression among […]
- Animals
Trail Mix: Espionage among the bees
Tests with two kinds of stingless bees suggest that the more aggressive species uses scent-based espionage to target raids on the milder species' food.
- Paleontology
Fossil find extends ants’ ancient lineage
The recently described, 92-million-year-old fossil of a primitive worker ant pushes back the first record of its particular subfamily by 40 million years, forcing researchers to reevaluate their ideas about the early evolution of these insects.
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Wild tobacco heeds ‘ouch’ from sagebrush
Biologists studying wild tobacco and sagebrush say they have found a case of interspecies plant communication in the field.
- Humans
From the June 16, 1934, issue
Fanciful creations of the photographer's art, the possible addition of element 93 to the periodic table, and a Triceratops skull on display.
