5,420 results
5,420 results for: Forests
- Archaeology
Ancient Asian Tools Crossed the Line
Excavations in China yield surprising finds of 800,000-year-old stone hand axes.
- Anthropology
Drowned land holds clue to first Americans
A map of a now-flooded region charts the path that Asians may have taken to first reach the Americas.
- Earth
Forest-soil fungi emit gases that harm ozone layer
Laboratory tests reveal for the first time that certain types of common fungi can produce ozone-destroying methyl halide gases.
- Earth
Lowland tree loss threatens cloud forests
Changes in regional climate brought about by large-scale deforestation in the eastern lowlands of Central America are affecting weather in the mountains downwind, imperiling ecosystems there.
- Life
All the World’s a Phage
There are an amazing number of bacteriophages—viruses that kill bacteria—in the world.
- Humans
From the November 12, 1932, issue
FIRST WELDED PENSTOCK BUILT IN CALIFORNIA Welding, an abundant source of beautiful photographs, furnishes another picture for the front cover of the Science News Letter this week; but beauty was not sufficient reason for its prominence in the cover position. The picture was taken within a welded pipe, one-fourth-mile long, tilted up a mountainside at […]
- Earth
Nature’s Own: Ocean yields gases that had seemed humanmade
Chemical analyses of seawater provide the first direct evidence that the ocean may be a significant source of certain atmospheric gases that scientists had previously assumed to be produced primarily by industrial activity.
- Animals
Frogs Play Tree: Male tunes his call to specific tree hole
Borneo's tree-hole frog may come as close to playing a musical instrument as any wild animal does. [With audio file.]
- Archaeology
Wild Chimps Rocked On: Apes left unique record of stone tools
Researchers have uncovered the first archaeological site attributed to chimpanzees, which includes stone implements that were used to crack nuts on top of thick tree roots.
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- Earth
Study links cancer to Vatican Radio
Broadcast transmissions from a forest of antennas owned by Vatican Radio, outside Rome, appear to have boosted leukemia incidence in neighboring communities.
- Humans
From the May 10, 1930, issue
CANNON-BALL TREE The strange growth represented on the cover of this issue of the SCIENCE NEWS-LETTER is not a freak grapefruit tree. It is the normal method of flowering and fruiting of the cannon-ball tree, a member of the monkey-pot family found in the forests of South America. Its fruiting branches always grow out of […]
