Biophysicists in Germany are leading an effort to develop and apply models of the so-called lateral-line system found in fish and some amphibians. This sensory organ enables an animal, even in murky water, to map its surroundings and recognize other animals. In a new study, the researchers report mathematical models that capture essential elements of the system, agree with experimental data, and could be easy to implement technically, as in robots.

The ability of gray squirrels to learn from observing others is highlighted in a new study. The research shows how squirrels can quickly learn from watching their peers, particularly if it relates to stealing food. The research adds to growing evidence that animals are primed to learn quickly about what is most important to their survival and that they learn by observing others. It is the first study to test the ability of gray squirrels to learn from observation.

(American Association for Cancer Research) Many women at high risk for breast or ovarian cancer are choosing to undergo surgery as a precautionary measure to decrease their cancer risk, according to a report in Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research.

Geckos are very adept at climbing through difficult terrain using an intricate adhesive system. Until now it has not been known when and how they switch on their unique system of traction. Scientists have now discovered that the geckos' amazing grip is triggered by gravity.

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