2,477 results
- Ecosystems
Groundwater dropping globally
Nine-year record collected from orbit finds supply dropping mostly due to agriculture.
- Health & Medicine
How being deaf can enhance sight
Hearing-specialized brain regions can adapt to processing visual input, cat experiments show.
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Letters
The liver’s carbon fixation The possibility that insects can harness solar energy (SN: 1/15/11, p. 8) is no less fascinating than the ability of the mammalian liver to do the light-independent part of photosynthesis: carbon fixation. When concentrations of the amino acid methionine rise after a high-protein meal, the liver shifts gears to get rid […]
- Life
Saber-toothed cats strong-armed prey
Smilodon fatalis used strong forelimbs to pin victims, an analysis of fossils shows.
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Science Past from the issue of August 27, 1960
CAT PHOBIA TREATMENT — [A] patient was cured of cat phobia by forcing herself to handle velvet until she got used to it. The patient, a 37-year-old married woman … had had a fear of cats as long as she could remember…. The therapist began … [with] what she felt was the least objectionable idea […]
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2011 Science News of the Year: Life
Multicellular life from a test tube In less than two months, yeast in a test tube evolved from single-celled life to bristly multicellular structures. The new, snowflakelike forms act like multicellular organisms, reproducing by splitting when they reach large sizes and evolving further in response to harsh conditions, William Ratcliff of the University of Minnesota, […]
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Enzyme revives long-term memories
Increasing levels of a natural substance in the brain helps rats remember old times.
- Humans
Contrasting the concerns over climate and ozone loss
On November 7, ozone and climate scientists met in Washington, D.C., to discuss whether the history of stratospheric ozone protection offered a useful case study about how to catalyze global action on carbon dioxide and other greenhouse gases. The simple answer that emerged: No.
- Quantum Physics
Clash of the Quantum Titans
After decades of debate, disputes over the mathematical rules governing reality remain unresolved.
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Lopped Off
Removal of top predators trickles through the food web.
