Regent honeyeater: Endangered bird 'has forgotten its song'
Mar 2021, BBC News
"They don't get the chance to hang around with other honeyeaters and learn what they're supposed to sound like," explained Dr Ross Crates.During this painstaking search, he started to notice birds that were "singing weird songs".He recalled: "They didn't sound anything like a regent honeyeater - they sounded like different species."
Songbirds learn their songs the same way that humans learn how to speak.
via: Crates Ross, et al. 2021. Loss of vocal culture and fitness costs in a critically endangered songbird. Proc. R. Soc. B. 2882021022520210225http://doi.org/10.1098/rspb.2021.0225
"Even small numbers of extricates could synthesize a basic cognition support network. The outer fringe was full of such partially configured quasi-humans, fumbling together towards a mutant existence."-Mass Transference Device, 2010
Image credit: An illustration of the chain-reaction process that underlies the photon avalanching mechanism Columbia Engineering researchers have realized in their nanoparticles. In this process, the absorption of a single low-energy photon sets off a chain reaction of energy transfers and further absorption events that result in many highly excited ions within the nanoparticle, which then release their energy in the intense emission of many higher-energy photons. Credit: Mikołaj Łukaszewicz/ Polish Academy of Sciences
Researchers find 12 semidetached mass-transfer massive binaries in galaxy M31
Apr 2022, phys.org
In this study, the researchers have found that the relationship between the mass ratio and the fill-out factor of the primary star reveals that they are in the stage of slow mass transfer from less massive components to their companions with the reversed mass ratio.
via Chinese Academy of Sciences: F.-X. Li et al, Semidetached Mass-transfer Massive Binaries in the Nearby Galaxy M31, The Astronomical Journal (2022). DOI: 10.3847/1538-3881/ac5685
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