6,899 results
6,899 results for: Bears
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- Life
Dinosaur-era feathers sealed in amber
The richest collection yet of primordial plumage preserves pigment and fine details found modern birds.
- Psychology
Same face, different person
Photos of a stranger’s mug can look like many unfamiliar people to an observer, complicating facial recognition research.
- Chemistry
Unusual crystal patterns win chemistry Nobel
First rejected as impossible, the discovery that atoms can pack in subtly varied patterns forced revisions of fundamental concepts.
- Humans
Humans’ entry into Europe pushed earlier
Homo sapiens fossils from Italy and England point to an early arrival and a longer time living alongside Neandertals.
- Space
Mars’ history is a fluid situation
Recent data from two spacecraft suggest the planet was mostly dry and cold, with a wet, warm subsurface.
- Life
Giant beavers had hidden vocal talents
With air passageways in its skull like no other animal known, an extinct outsized rodent may have made sound all its own.
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19601
Nothing was said in your article about the situation in Canada, where killing bears for their gallbladders and paws is a serious problem. I suggest that you contact TRAFFIC North America and the World Wildlife Fund–Canada for detailed information on the problem in Canada. Abby SchwarzVancouver, British Columbia The article states, “Traditional medicine has been […]
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19678
This article reported that years ago it was discovered that certain male mice eradicate cancer cells and that white blood cells from these mice make normal mice cancer resistant. It also reported that it is superpremature to look forward to clinical applications. It would seem that aggressive searches for remission of cancer in humans with […]
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19798
Your article shows that meerkats bear an uncanny resemblance to human beings. We, too, have an innate sense of responsibility for our group and individually commit acts of unspeakable violence. John HagerhorstFrederick, Md.
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19806
I find it absolutely incredible that anyone is seriously contemplating an escalation of “natural” herbicides as mentioned in this article. As there is no “additive” sprayed on the crop, no testing is likely in animal or human clinical trials. We in the first world must bear the brunt of this wholesale testing on populations, as […]
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19839
Rather than concluding that the object that hit Canada 12,900 years ago was a comet, I wonder whether there might not be an alternate reason that geologists haven’t discovered a large hole. If a meteor hit a kilometer-thick glacier, would it have left a crater in the rock underneath the ice? Peter ShorWellesley, Mass. Scientists […]
