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Orangutans hand it to researchers
Orangutans try to communicate by gesturing when they think they're being misunderstood, much as people do when playing charades.
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My cat has been doing for years what scientists at the University of St. Andrews reported of orangutans: motioning for healthy portions of their favorite foods. Except that four tins of cat food later, my cat is still motioning “Not that kind, wrong flavor.” Sally YoungNewport News, Va.
- Earth
Lack of oxygen stunts fish reproduction
Seasonal oxygen shortages in coastal waters, increasing in severity because of pollution, may impair fish reproduction.
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Virus thrives by hiding
Some viruses create cocoonlike refuges in the cells they invade, shielding them from the cell's defense mechanisms.
