Search Results for: Polar Bears
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581 results
- Climate
Boreal forests shift north
As forests move northward and to higher elevations, they alter ecosystems and threaten to further heat the Arctic's already warming climate.
- Earth
Are pollutants shrinking polar bear gonads?
New research links persistent pollutants with reproductive impairment in polar bears.
- Animals
Built for Speed
Animals would prove fierce competitors at the Olympics — if only they would stay in their lanes.
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- Humans
Extreme Encyclopedia: Every living thing will get its own page
A consortium of museums and laboratories has unveiled plans to create a free, Web-based Encyclopedia of Life with an entry for every living species.
- Astronomy
Astronomy Gets Polarized
Studies using polarized light, an endeavor once considered astronomy's stepchild, are now elucidating the shape of supernovas as well as providing new details about the early universe.
- Earth
North by Northwest
The Earth's magnetic poles wander around quite a bit, a phenomenon that occasionally confounded ancient explorers but is proving useful for today's archaeologists.
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Touring the Poles
Hunting for bear leads to uncountable infinities.
- Humans
Science News of the Year 2007
A review of important scientific achievements reported in Science News during the past year.
- Planetary Science
Red Planet Express: Mars spacecraft traces a watery tale
A Mars-orbiting spacecraft has provided new details about when and where liquid water existed on the planet.
- Earth
Tiny Bubbles: Oldest evidence yet for methane makers
Analyses of the gases dissolved in water trapped in ancient minerals suggest that methane-generating microbes have been around almost 3.5 billion years.
- Physics
Magnetic Overthrow
Researchers have discovered and begun to exploit a fundamentally new way to exert magnetic influences, at least on extremely small scales.
