5,531 results
5,531 results for: Forests
- Ecosystems
Shark Serengeti: Ocean predators have diversity hot spots
The first search for oceanic spots of exceptional diversity in predators has turned up marine versions of the teeming Serengeti plains.
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Probing Ocean Depths: Photosynthetic bacteria bare their DNA
Scientists have deciphered the DNA of two highly abundant, photosynthetic ocean bacteria.
- Ecosystems
Risky High Life: Mountain creatures prove extra-vulnerable
Some of the species hardest hit by climate change will be those living in particular mountain highlands.
- Earth
Clearing the Air: Ozone-killing bromine is on the decline
Chemical analyses of Earth's lower atmosphere show that the overall concentration of bromine, a component of some potent ozone-destroying chemicals, has dropped by 5 percent since peaking in 1998.
- Astronomy
Stellar Tantrums: Tracking the flaring cycles of other stars
Astronomers are closely tracking the ebb and flow of magnetic activity and powerful flares on stars other than the sun.
- Archaeology
Art on the Rocks: Dating ancient paintings in the caves of Borneo
By dating the mineral deposits on top of cave paintings in Borneo, archaeologists have pushed back the date of earliest human habitation on the island by at least 5,000 years.
- Earth
Indonesian reefs fell prey to fires
The fires that swept through Indonesian rain forests late in 1997 apparently laid waste to some marine ecosystems, as well.
- Animals
Risk of egg diseases may rush incubation
Bird eggs can catch infections through their shells, and that risk may be an overlooked factor in the puzzlingly early start of incubation.
- Earth
Mapping carbon dioxide from space
An orbiting observatory in space will sense atmospheric carbon dioxide levels around the globe, creating a detailed map of the greenhouse gas' sources and sinks.
- Materials Science
Water Repellency Goes Nano: Carpet of carbon nanotubes cleans itself
Forests of carbon nanotubes coated with Teflon yield a superhydrophobic material—the ultimate self-cleaning surface.
- Paleontology
Northern Extinction: Alaskan horses shrank, then disappeared
Horses that lived in Alaska shrank dramatically in body size before they went extinct at the end of the last ice age.
- Health & Medicine
Two markers may predict heart risk
Two proteins that play a role in inflammation may serve as indicators of a person's risk of heart disease and stroke.
