Jan. 6, 2022 — An excavation at Thompson's Cove in San Francisco shows 'Atlantic cod were imported during the 1850s, likely as a (largely) deboned, dried and salted product from the East Coast of the United States.' The analysis underscores the importance of global maritime trade in northern California during the Gold ...
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Jan. 6, 2022 — It is common knowledge that there would be no oxygen on Earth were it not for sunlight; the key component in photosynthesis. Now researchers have made the surprising discovery that oxygen is also produced without sunlight, possibly deep below the ocean ...
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Jan. 6, 2022 — At the largest winter monarch aggregation in central Mexico, scientists have observed that rodents attack monarchs that fall to the ground. Biologists have now discovered that the western harvest mouse also eats grounded monarchs. Documenting this new feeding behavior is a reminder of little we know about the interactions that may be lost as insect populations ...
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Jan. 6, 2022 — Researchers have developed an automated method that can accurately identify calls from a family of ...
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Jan. 6, 2022 — Coral reef ecosystems support diverse small-scale fisheries -- and the fish they catch are rich in micronutrients vital to the health of millions of people in the tropics, a new study reveals. And, counter-intuitively, following bleaching events that kill off coral and can transform the composition of reef ecosystems, reef fisheries can remain ...
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Jan. 6, 2022 — Large wildfires and severe heat events are happening more often at the same time, worsening air pollution across the western United States, a study has found. In 2020, more than 68% of the western U.S. -- representing about 43 million people -- were affected in one day by the resulting harmful-levels of air pollution, the highest number in 20 ...
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Jan. 6, 2022 — The air in a zoo is full of smells, from the fish used for feed to the manure from the grazing herbivores, but now we know it is also full of DNA from the animals living there. Two research groups have each published an independent proof-of-concept study showing that by sampling air from a local zoo, they can collect enough DNA to identify the animals nearby. This may prove to be a valuable, ...
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Jan. 5, 2022 — Nearly 2 million new cases of pediatric asthma every year may be caused by a traffic-related air pollutant, a problem particularly important in big cities around the world, according to a new ...
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Jan. 5, 2022 — A reexamination of Earth's famous 'whiff of oxygen' has the potential to rewrite early accounts of the planet's history by finding that atmospheric oxygen actually did not exist prior to the Great Oxygenation Event ...
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Jan. 5, 2022 — Very few proteins in the body have a change that makes them unique compared to the corresponding proteins in Neanderthals and apes. Researchers have now studied one such protein, glutathione reductase, which protects against oxidative stress. They show that the risk for inflammatory bowel disease and vascular disease is increased several times in ...
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Jan. 5, 2022 — The first comprehensive analysis of viral horizontal gene transfer (HGT) illustrates the extent to which viruses pick up genes from their hosts to hone their infection process, while at the same time hosts also co-opt useful viral ...
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Jan. 5, 2022 — A new study casts doubt on drought as the driver of ancient Mayan civilization ...
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