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      August 3, 2011Health

      Chew on This: More Mastication Cuts Calorie Intake by 12 Percent

      About a century ago, a new craze gripped the country's health conscious: mastication. Chewing each bite of food precisely 32 times would help people control how much food they consumed—turning them from gluttons to epicureans—according to the early 20th-century dietician Horace Fletcher...
      November 15, 2010Biology

      Perpetrators of HIV crimes uncovered through "evolutionary forensics"

      DNA evidence has been used to link suspects to crime scenes and even to people they might have infected with HIV. Now, using tools from evolutionary biology, researchers have shown that they can establish the direction of transmission of HIV in criminal cases involving men who intentionally infected women partners during unprotected sex...
      November 25, 2010Evolution

      How land mammals evolved to be so massive

      Although today's awe-inspiritng African Bush Elephant ( Loxodonta africana ) might seem a mighty beast, it's a fraction of the size of ancient mammals that roamed the Earth 37 million to 2.7 million years ago.The Eocene and Oligocene's Indricotherium measured in at more than five meters tall, and the Miocene and Pleistocene's Deinotherium likely weighted some 17,000 kilograms...
      December 14, 2010The Sciences

      King Henri IV's mummified head identified 400 years after assassination

      The severed head of King Henri IV has been identified from the jumbled remains in the mass graves in Paris's Royal Basilica of Saint-Denis. A team of researchers used a host of scientific strategies to confirm the head's owner, who was killed in 1610...
      April 12, 2011Biology

      Octopuses and squids are damaged by noise pollution

      Not only can squids and octopuses sense sound, but as it turns out, these and other so-called cephalopods might be harmed by growing noise pollution in our oceans—from sources such as offshore drilling, ship motors, sonar use and pile driving...
      May 4, 2011The Sciences

      Buzzing: 13-Year Periodic Cicadas Emerge

      The humble vibrato of summer will crescendo a bit earlier this year in the U.S. South. Billions of cyclical cicadas will be out in full force starting this May, following a 13-year lull...
      May 18, 2011Biology

      New Fossil Severs Snakes from Legless Lizard Line

      Snakes aren’t just lizards without any legs. But a curious group of long, legless lizards look suspiciously like snakes themselves.

      Also known as "worm lizards" (aka amphisbaenians), these small serpentine reptiles have evolved a limb-free body plan and strong heads that are handy for their burrowing lifestyle...
      May 31, 2011The Sciences

      Did You "Bring Science Home"?

      This month Scientific American launched 20 free at-home science activities with our inaugural Bring Science Home series. We hope you've enjoyed trying some of them and that you will continue to visit our Education page for more ways to do a little more science every day—at any age...
      February 1, 2011Biology

      Bush-league male mates stress out female finches

      Whether they are finding love in a flock or a lab, female Gouldian finches ( Erythrura gouldiae ) know what they're looking for: a fit male with head feathers that match their own.
      July 22, 2011Biology

      FDA Starts to Tackle Regulation of Health and Medical Apps

      On-the-go doctors can already see your latest MRI or CT scan via a smart phone or tablet. But would you want them to be able to download an app that essentially turns an iPad into an EKG to determine if you are having a heart attack?...
      September 3, 2009Health

      Academic researchers receive on average $33k a year from the medical industry

      Hardly isolated from commercial ties, researchers in the ivory towers—and labs—of U.S. universities receive an average of $33,417 of funding a year from medical device, pharmaceutical and other medical industry companies, according to a study published yesterday in the Journal of the American Medical Association ...
      May 26, 2009Mind & Brain

      Rooks make hooks (and other tools) in labs, but not in wild

      Crows are known for their above-birdbrain intelligence, and New Caledonian crows have been observed using tools in their day-to-day lives. Other members of the crow family, however—such as rooks—don't seem to have this tool-using tendency in their natural habitats...
      July 29, 2009Health

      Pregnant women and children first? CDC announces H1N1 vaccine recommendations

      Here is who should be first in line this fall when the H1N1 vaccine becomes available, the U.S. Centers for Disease Control announced today: Pregnant women, all children (except those under six months old), teens and young adults up to 24 years old, people with babies under six months old, health care workers and nonelderly adults who have underlying medical conditions...
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