3,893 results
3,893 results for: Dogs
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19061
In this article it was speculated that calorie restriction reduces the production of free radicals. We have found that food deprivation almost doubles concentrations of melatonin in various parts of the gastrointestinal system. Melatonin, a very potent scavenger of free radicals, has increased the lifespan of mice in several studies. It could be that the […]
- Health & Medicine
USDA gives nod to irradiating meats
The federal government approved food irradiation, the only technology known to kill an especially lethal strain of bacteria, for use on raw meats.
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Such jokers, those Komodo dragons
A study of a young Komodo dragon reveals what a behaviorist says would be considered play if seen in a dog or cat.
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After West Nile Virus
As biologists try to estimate the impact of West Nile virus on wildlife, it's not the famously susceptible crows that are causing alarm but much rarer species.
- Tech
Eau, Brother!
The combination of advanced sensor materials and powerful computer chips promises devices that can sense threats ranging from bacteria in food to explosives in land mines.
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- Math
If It Looks Like a Sphere…
A Russian mathematician has proposed a proof of the Poincaré conjecture, a question about the shapes of three-dimensional spaces.
- Anthropology
Southern Reindeer Folk
Western scientists make their first expeditions to Mongolia's Tsaatan people, herders who preserve the old ways at the southernmost rim of reindeer territory.
- Health & Medicine
Acetaminophen in Action: Effect on an enzyme may stop pain, lower fever
The discovery of an enzyme scientists are calling cyclooxygenase-3, which is disabled by acetaminophen, might explain why this drug can stop pain and fever but not inflammation.
- Animals
Don’t look now, but is that dog laughing?
Researchers have identified a particular exhalation that dogs make while playing as a possible counterpart to a human laugh.
- Paleontology
Telltale Dino Heart Hints at Warm Blood
A recently discovered fossil dinosaur heart is more like the heart of birds and mammals than that of crocodiles, providing further evidence that dinosaurs may have been warm-blooded.
- Computing
Minding Your Business
By means of novel sensors and mathematical models, scientists are teaching the basics of human social interactions to computers, which should ease the ever-expanding collaboration between people and machines.
