Uncategorized
- 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
Global warming is marmot wake-up call
Marmots are coming out of hibernation earlier, while chipmunks and ground squirrels sleep longer-effects that could be attributed to global warming.
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19183
This article seems to contain a few errors. Codons are found on the messenger RNA. Therefore, they can’t contain thymine. They must have uracil, instead. The RNA codon AUG (your ATG) is the only codon for methionine. If it is the “start” codon, how is methionine coded? Nicholas L. Reuter University of Cincinnati Cincinnati, Ohio […]
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The Meaning of Life
Computers are unscrambling genomes to reveal the secrets in DNA codes.
- Math
Catching Flies
Archerfish and baseball outfielders appear to use different strategies to snag a projectile. Archerfish (Toxotes jaculatrix) are famous for their unusual way of hunting insect prey. Upon spying an insect on a twig or a piece of foliage hanging above the water surface, the fish shoots it down using a strong, accurately aimed jet of […]
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Chicken Rank: Hen social position shifts egg hormones
A study of leghorn chickens has linked hormone concentrations in a hen's eggs to her rank in the pecking order.
- Health & Medicine
Making Bone: Novel form of vitamin D builds up rat skeleton
A newly synthesized form of Vitamin D induces bone-making cells to capture calcium and fortify bone mass in rats, suggesting it might work against osteoporosis in people.
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19182
I’ve never been a baboon, but I have been a mom, and consequently a mother baboon’s failure to call out to a separated youngster emitting distress sounds is not a bit puzzling to me. If I heard my toddler wailing on the other side of the road, would I call and say, “Don’t worry, mummy’s […]
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Cries and Greetings
Baboon intimacy and detachment present vexing clues.
- Humans
Nobel prizes honor innovative approaches
The 2002 Nobel prizes pay tribute to an international sampling of scientists who developed powerful new techniques for expanding the horizons of research.
- Physics
Cooled device unveils a quantum limit
A novel suspended device chilled near absolute zero demonstrates the existence of a basic unit, or quantum, of heat conductance—the first evidence of quantum mechanics in mechanical structures.
- Earth
Lawn Agent Cues Embryo Shortfall: Herbicide weeds out mice in the womb
Minuscule amounts of over-the-counter weed killers impair reproduction in mice.
