A nesting female loon along a swampy lake shore.
Bird experts believed for years that once a bird learned songs, the calls stayed relatively fixed for life. But a new Cornell University study finds that male loons change their tunes when they move into a new territory.
Professor Charles Walcott poses with a toy loon in his office. His latest research provides valuable insights into the loon’s social and territorial behavior, which has implications for conservation efforts.
The study, to be published in the March issue of the international publication Animal Behaviour, reports that while female loons usually disperse over a wide area when ready to breed, males tend to stake claim to a small lake or section of a larger lake near where they were hatched. But rivals often challenge resident males and fight for the territory and the females. The fights can be to the death, with males diving and rising up under a foe in an effort to spear a rival through the chest and heart with his long, pointed beak.
Blaine Friedlander | EurekAlert!
Zap! Graphene is bad news for bacteria
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Discovery of an alga's 'dictionary of genes' could lead to advances in biofuels, medicine
23.05.2017 | University of California - Los Angeles
An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.
In pursuit of this goal, researchers at EPFL's Laboratory of Photonics and Quantum Measurements LPQM (STI/SB), have investigated a nonlinear graphene-based...
Dental plaque and the viscous brown slime in drainpipes are two familiar examples of bacterial biofilms. Removing such bacterial depositions from surfaces is...
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