Search Results for: Forests
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5,529 results for: Forests
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EcosystemsBrazil Nut Loss Looms: Harvest may be too heavy to last
A study of 23 spots in Amazonian forests has raised the question of whether the collection of Brazil nuts—praised as a model of gentle forest use—has reached such levels that it may not be sustainable.
By Susan Milius -
Materials ScienceBranching Out: Semiconducting nanotrees could boost electronics
Forests of semiconducting nanotrees could form the basis of future solar cells, low-energy lighting, and other optical or microelectronic devices.
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EcosystemsDecades of Dinner
Sunken whale carcasses support unique marine ecosystems that display stages of succession and change, just as land ecosystems do.
By Susan Milius -
Health & MedicineHumidity may affect LASIK surgery
High humidity can boost the chances of needing follow-up surgery after LASIK surgery for nearsightedness.
By Nathan Seppa -
Two egg cells make fatherless mouse
By fusing two egg cells, researchers have created a mouse with no father.
By John Travis -
EcosystemsFly may be depleting U.S. giant silk moths
A parasitic fly introduced to fight gypsy moths starting in 1906 may be an overlooked factor in the declines of giant silk moths.
By Susan Milius -
Glowing Trio under the Sea: Nitrogen fixer joins algae inside coral
A coral that fluoresces orange appears to be the first ever found to contain a symbiotic microbe that converts nitrogen into a biologically useful form.
By Susan Milius -
PlantsA Frond Fared Well: Genes hint that ferns proliferated in shade of flowering plants
Analyses of genetic material from a multitude of fern species suggest that much of that plant group branched out millions of years after flowering plants first appeared, a notion that contradicts many scientists' views of plant evolution.
By Sid Perkins -
Materials ScienceSavvy Sieve: Carbon nanotubes filter petroleum, polluted water
A filter made out of carbon nanotubes has potential for such applications as processing crude oil and decontaminating drinking water.
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AnimalsWill Mr. Bowerbird Fall for a Robot?
Push a button and she turns her head. But can she turn his?
By Susan Milius -
ArchaeologyGuatemalan sites yield Maya insights
Excavations at three archaeological sites in Guatemala have provided new insights into both the early and late stages of ancient Maya civilization.
By Bruce Bower -
EarthNight space images show development
Scientists may have come up with a way to use satellite images taken at night to estimate the rate of population growth in fire-prone areas and thereby better assess fire risk to specific groups of residents.
By Sid Perkins