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| Proton-conducting material found in electrosensory organs of sharks Posted: 13 May 2016 06:50 PM PDT Sharks, skates, and rays can detect very weak electric fields produced by prey and other animals using an array of unusual organs known as the ampullae of Lorenzini. Exactly how these electrosensory organs work has remained a mystery, but a new study has revealed an important clue that may have implications for other fields of research. |
| Beware of microbial traffic jams Posted: 13 May 2016 10:02 AM PDT Grains of sand in an hourglass or candy in a gumball machine often jam up, and physicists have studied this granular flow for decades.Biophysicists have now found that multiplying yeast cells can jam up too, and be described by some of the same physical and mathematical principles. The jammed yeast can actually exert strong pressure that microbes may use to alter their environment. |
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