A "stink fight" between ring-tailed lemurs might be dead serious to them. But to observers, the scented struggle ranks among the more odd, even comical sights at the Duke University Primate Center — already renowned for the biological eccentricities of its exotic denizens.
Preparations for battle begin when male combatants load their "weapons" — vigorously rubbing their tails against their shoulders and between their wrists, infusing the fur with scent from glands there.
So armed — or tailed — they launch their attacks, feathery tails arched over their backs, ears flattened and squeaking warnings. They relentlessly flick their tails at one another until one of the adversaries comes to his scentses, gets the odiferous message and retreats. But until the research of Duke biologist Christine Drea and student Elizabeth Scordato, scientists had no idea what chemical messages were being wafted back and forth in such fights. More broadly, they have not understood the complex "language" of multiple scents that lemurs use to communicate a variety of messages from aggression to mating receptiveness.
Dennis Meredith | EurekAlert!
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Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
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The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
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Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
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