3,878 results
- Humans
Letters from the April 10, 2004, issue of Science News
Inaction verbs? Regarding “The Brain’s Word Act: Reading verbs revs up motor cortex areas” (SN: 2/7/04, p. 83: The Brain’s Word Act: Reading verbs revs up motor cortex areas), did the researchers image the brains of disabled people who know the meaning of a verb but can’t perform the action, or of people without any […]
- Animals
Jungle Genes: First bird genome is decoded
Researchers have unveiled a draft of the first bird genome to be sequenced, a vintage chicken.
- Anthropology
Evolution’s Lost Bite: Gene change tied to ancestral brain gains
In a controversial new report, a research team proposes that an inactivating gene mutation unique to people emerged around 2.4 million years ago and, by decreasing the size of jaw muscles, set the stage for brain expansion in our direct ancestors.
- Paleontology
Flightless Feathered Friends
New finds of fossil penguins, as well as analyses of the characteristics and DNA of living penguins, are shedding light on the evolution of these flightless birds.
- Humans
Science News of the Year 2004
A review of important scientific achievements reported in Science News during the year 2004.
- Health & Medicine
Selenium’s Value to Prostate Health
Prostate cancer remains the most common malignancy among U.S. men, and internationally it ranks fourth. Though few studies have offered much insight into what triggers this disease, a growing number of researchers have found evidence suggesting that dietary selenium protects men against this cancer. The seafood in this bowl of sushi can be a rich […]
- Health & Medicine
Bone Builder: New drug could heal hard-to-mend fractures
A synthetic compound can heal broken bones that are so damaged they don't knit on their own, a study in rats and dogs shows.
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Fear Not
Scientists find that facing your fears enables you to suppress them.
- Archaeology
Guard dogs and horse riders
More than 5,000 years ago, the Botai people of central Asia had ritual practices that appeared in many later cultures.
- Earth
Air Sickness
Studies have begun showing subtle but substantial harmful effects in outwardly healthy people who regularly breathe hazy air.
- Ecosystems
New protection for much-dogged shark
To rebuild northeastern U.S. populations of the spiny dogfish, the first fishing quotas on this species limit the harvest to roughly 10 percent of the 1998 haul.
- Health & Medicine
A Forget-Me-Not Dietary Supplement?
By the time most people reach their 40s, the mind has lost some of its youthful nimbleness. They learn a little more slowly. They forget more frequently. Sometimes, they don’t remember where they put the car keys or the name of that popular actor. REMEMBER THIS. Egg yolks are a rich source of choline. National […]
