livescience.com – And they learn new songs.
Source: Wenchan Zhao, Francisco Garcia-Oscos, Daniel Dinh, Todd F. Roberts. Inception of memories that guide vocal learning in the songbird. Science, 2019.
nytimes.com – The C.D.C. director says new data about people who are infected but symptom-free could lead the agency to recommend broadened use of masks.
Source: Lirong Zou, et al. SARS-CoV-2 Viral Load in Upper Respiratory Specimens of Infected Patients. New England Journal of Medicine, 2020.
More: businessinsider.com newyorker.com cbc.ca nytimes.com nytimes.com businessinsider.com medicaldaily.com nytimes.com nytimes.com the-scientist.com techtimes.com science20.com theverge.com zdnet.com zmescience.com upi.com huffingtonpost.com nytimes.com nytimes.com businessinsider.com theguardian.com businessinsider.com cbc.ca nytimes.com theguardian.com theverge.com hngn.com techtimes.com businessinsider.com nytimes.com
upi.com – Scientists have found evidence that Neanderthals were consuming mussels, fish, seals and other marine species at least 80,000 years ago.
Source: J. Zilhão, et al. Last Interglacial Iberian Neandertals as fisher-hunter-gatherers. Science, 2020.
discovermagazine.com – Experts talk about what it means to be infected without being sick, and how that seems to be making the novel coronavirus very easy to spread.
Source: Ruiyun Li, et al. Substantial undocumented infection facilitates the rapid dissemination of novel coronavirus (SARS-CoV2). Science, 2020.
theguardian.com – Scientists are tracing the path of Sars-CoV-2 from a wild animal host – but we also need to look at the part played in the outbreak by industrial food production
Source: Peng Zhou, et al. A pneumonia outbreak associated with a new coronavirus of probable bat origin. Nature, 2020.
science20.com – When a drop of liquid evaporates, solids are left behind in a pattern that depends on what the liquid is, what solids are in it and the environmental conditions. You may have seen a 'coffee ring' when overflow deposits solids along the edge of the puddle as it evaporates. The same things happen with other beverages.
Source: Adam D. Carrithers, et al. Multiscale Self-Assembly of Distinctive Weblike Structures from Evaporated Drops of Dilute American Whiskeys. ACS Nano, 2020.
the-scientist.com – The newly described Ikaria wariootia was a small, wormlike creature that marked an important evolutionary step between early multicellular organisms and more complex modern animals.
Source: Scott D. Evans, Ian V. Hughes, James G. Gehling, Mary L. Droser. Discovery of the oldest bilaterian from the Ediacaran of South Australia. Proceedings of the National Academy of Sciences, 2020.
science20.com – I'm not all that excited about manned missions in space because it is a struggle for NASA to even build a space telescope without going 13 years over budget, but it's worth doing basic research on how an outpost on Luna might be built.It will require a lot of multi-purposing, and re-purposing.
Source: Shima Pilehvar, Marlies Arnhof, Ramón Pamies, Luca Valentini, Anna-Lena Kjøniksen. Utilization of urea as an accessible superplasticizer on the moon for lunar geopolymer mixtures. Journal of Cleaner Production, 2020.
discovermagazine.com – When did human ancestors come down from the branches? A look inside a fossilized hip joint shows how bones adapted for crouching and walking on all fours.
Source: Leoni Georgiou, et al. Evidence for habitual climbing in a Pleistocene hominin in South Africa. Proceedings of the National Academy of Sciences, 2020.
sciam.com – New analyses question whether mysterious gamma-ray and x-ray light in the galaxy actually stems from an invisible mass
Source: Christopher Dessert, Nicholas L. Rodd, Benjamin R. Safdi. The dark matter interpretation of the 3.5-keV line is inconsistent with blank-sky observations. Science, 2020.
science20.com – Co-authored by by Lauren Philippi, Department of Human Health and Nutritional Sciences, University of GuelphIn late December 2019 an outbreak of pneumonia cases arose in Wuhan, China. Patients presented with an acute respiratory illness linked to the 2019 Novel Coronavirus (COVID-19).
Source: Kai Kupferschmidt. WHO launches global megatrial of the four most promising coronavirus treatments. Science, 2020.