6,913 results
6,913 results for: Bears
- Life
Neandertal genes point to interbreeding, inbreeding
DNA from 50,000 years ago underscores modest levels of mating across hominid populations.
- Chemistry
Salt spices up chemistry
Hot, compressed sodium chloride stretches the fundamental rules of matter.
- Microbes
Microscopic menagerie
The microbes dwelling in and on multicellular organisms should be viewed as evolutionarily inseparable from their hosts, some biologists argue.
- Anthropology
Skulls from ancient London suggest ritual decapitations
The city’s Roman rulers had special watery places to keep the heads of military enemies or vanquished gladiators.
- Planetary Science
Old rover finds new evidence of water on Mars
Opportunity’s analysis of rocks at Endeavour crater reveals chemistry that could have supported life.
- Climate
Grape expectations
Global warming has delivered long, warm growing seasons and blockbuster vintages to the world’s great wine regions. But by mid-century, excessive heat will push premium wine-making into new territory.
- Astronomy
When looking for aliens, try finding their pollution
Future telescopes may discover civilized aliens by detecting the industrial pollutants called fluorinated gases in exoplanet atmospheres.
- Planetary Science
NASA bets on asteroid mission as best path to Mars
NASA wants to bag an asteroid using robotic arms or an enormous sack and place the rock in the moon’s orbit for study. This may keep astronauts working but not, as NASA claims, get them Mars-ready.
- Environment
Carbon capture and storage finally approaching debut
Carbon capture and storage offers a way to rein in global carbon emissions. But financial and regulatory obstacles, as well as public fears, are delaying the technology’s long-awaited implementation.
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