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A Marmoset Never Forgets

Scientists studying social learning in animals have shown how easy it can be to introduce a new behavior into a group and watch it spread from individual to individual. However, not nearly as many studies are devoted to following up on the establishment of new behaviors to see if those behavioral traditions persist. In a new study,Tina Gunhold, Jorg Massen,…

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DNA Modifications Measured in Blood Signal Related Changes in the Brain

Johns Hopkins researchers say they have confirmed suspicions that DNA modifications found in the blood of mice exposed to high levels of stress hormone — and showing signs of anxiety — are directly related to changes found in their brain tissues. The proof-of-concept study, reported online ahead of print in the June issue of Psychoneuroendocrinology, offers what the research team…

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Pesticides Make the Life of Earthworms Miserable

Pesticides have a direct impact on the physiology and behavior of earthworms, a Danish/French research team reports after having studied earthworms that were exposed to pesticides over generations. “We see that the worms have developed methods to detoxify themselves, so that they can live in soil sprayed with fungicide. They spend a lot of energy on detoxifying, and that comes…

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Computer Accurately Detects Pain

Pretend to hurt to get out of work or school? Researchers led by a UC San Diego scientist have found a way to give you a real pain. The researchers have developed a computer system that detects whether pain is faked. And it’s far more accurate than the best human observers. With more development, the system could find uses helping doctors…

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