2,477 results
- Animals
Social Cats
Who says cats aren't social? And other musings from scientists who study cats in groups.
- 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.
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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.
- Archaeology
Neandertals’ diet put meat in their bones
Chemical analyses of Neandertals' bones portray these ancient Europeans as skillful hunters and avid meat eaters, countering a theory that they mainly scavenged scraps of meat from abandoned carcasses.
- Animals
Leashing the Rattlesnake
Even in the 21st century, there's still room for old-fashioned, do-it-yourself ingenuity in experimental design for studying animal behavior.
- Health & Medicine
To Your Health?
Doctors are divided on whether the value of screening the torso with X-rays to find symptomless disease outweighs the costs.
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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.
- Computing
Pictures Only a Computer Could Love
New, unconventional lenses shape scenes into pictures for computers, not people, so that computer-equipped microscopes, cameras, and other optical devices can see more with less.
- Math
Scrambled Grids
Amazingly simple mathematical operations can lead to intriguingly complex results. Consider, for instance, the iterative geometric process of creating flaky pastry dough. Flatten and stretch the dough, then fold it over on top of itself. Do it again and again and again. Repeating the pair of operations–stretch and fold–just 10 times produces 1,024 layers; 20 […]
- Chemistry
Antibiotics may become harder to resist
Drug designers have developed new tactics to make it harder for bacteria to survive exposure to antibiotics.
- Humans
From the October 15, 1932, issue
THE SABER-TOOTH STRIKES The artist has made a sketch of a dramatic scene involving a horselike hornless rhinoceros. It shows the poor animal attacked by a long-tailed saber-toothed tiger. The great cat is pictured as attacking much as a modern tiger or lion sometimes attacks: gripping a hard hold with its forelegs, slashing at its […]
- Science & Society
Science News of the Year 2003
A review of important scientific achievements reported in Science News during the year 2003.
