5,522 results
5,522 results for: Forests
- 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.
- Earth
Ash Clouds: Severe storms can lift smoke into stratosphere
New field observations, satellite images, and computer models suggest that a severe thunderstorm, enhanced by heat from forest fires, can boost soot, smoke, and other particles as far as the lower stratosphere, an unexpected phenomenon.
- Ecosystems
Brazil 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.
- Earth
Ash Clouds: Severe storms can lift smoke into stratosphere
New field observations, satellite images, and computer models suggest that a severe thunderstorm, enhanced by heat from forest fires, can boost soot, smoke, and other particles as far as the lower stratosphere, an unexpected phenomenon.
- Ecosystems
Brazil 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.
- Humans
Aerial radar sizes up ancient urban sprawl
Angkor, the capital of Cambodia's Khmer empire, included carefully planned suburbs that spread across the landscape.
- Animals
Elephant diets changed millions of years before their teeth
The animals fed on grasses long before their molars could grind the tough plants.
- Life
Tigers meet, mix in forest corridors
In India, narrow strips of wild land connect small groups of cats.
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- Ecosystems
Aging European forests full to the brim with carbon
Trees' capacity to sequester carbon dioxide from the atmosphere is dwindling.
- Life
Natural antifreeze prevents frogsicles
Sugar and other chemicals keep Alaskan frogs from freezing completely.
