3,878 results
- Humans
Munching Along
New Orleans' French Quarter has become a central proving ground for new technologies to find and attack the North American invasion of especially aggressive and resourceful alien termites.
- Earth
Candid cameras catch rare Asian cats
Remote cameras have confirmed that despite 30 years of armed conflict, jungle cats and many other large mammals continue to thrive in Cambodia.
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Disabled genes dull sense of smell
Mutated genes may explain why humans have a poor sense of smell.
- Health & Medicine
A Make-Time-For-Sex Diet?
We’re slaves to our hormones. Teenagers and pregnant women are experts on that topic. Both ride an emotional roller coaster as their bodies produce vacillating amounts of sex hormones. In fact, behind the scenes of all human biology–from conception to death–a delicate interplay of hormones drives everything from the expression of our gender to regulation […]
- Humans
Udder Beauty
Sophisticated screening of livestock championship winners may become as common as urine tests of Olympic athletes.
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19090
A pet dog doesn’t have to be hungry to enjoy chewing on a bone. Perhaps dire wolves did enjoy a “glorious paradise” 15,000 years ago. Without other predators to chase them away from a kill, they had more leisure time to hang about and chew the bone. Matt FenskeSpokane, Wash. From 15,000 to 12,000 years […]
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Visionary Research
Scientists are debating why primates evolved full color vision and whether that development led to a reduced sense of smell.
- Health & Medicine
Did colonization spread ulcers?
A comparison of strains of Helicobacter pylori, the bacterium that causes ulcers, suggests that colonists brought it to the New World.
- Health & Medicine
Bats may spread new Malaysian virus
A Nipah virus outbreak in Malaysia may have started when bats spread disease to pigs.
- Ecosystems
Cultivating Weeds
Some formerly mild-mannered plants turn into horticultural bullies when planted far outside their native range.
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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.
