* Genetic factors that affect severity of Covid. Left out is something folks seem loathe to discuss... what appears to be a racial difference depending on how much Neanderthal ancestry you have! Europeans appear to have the most, while Africans (least hard-hit by covid) have the least and Asian peoples (except Indian) have less, but more Denisovan. Follow this up in comments, if you dare.
* Why has COVID-19 been relati
* Why has Taiwan had a total of only SEVEN deaths from COVID-19? Here's one (possibly biased) interpretation... though one reason Taiwan suffered so little from the epidemic was its previous ordeal at the epicenter of the more deadly coronavirus SARS-CoV-1 in 2003, when Taiwan led the world in per capita deaths. This ordeal trained not chiefly the government officials now claiming credit for mastering Covid, but the immune systems of the Taiwanese. Their antibodies and T-cells were ready for Covid not because of policy choices but because of biological learning processes.
== And the past lives on ==
Scientists recently studied dating back several thousand years in the White Sands National Park in New Mexico. Most of the human footprints were made by a young adult, the team determined. But about every 100 yards or so, a few much smaller human prints suddenly appear.
Amazing. Many bacteria species create ‘biofilms’ that let them cluster, defend, against attack and even cooperate. Biofilm traces are among the earliest confirmed signs of life in Earth rocks. Now we see that the genes expressed by bacteria, when they actually make their biofilms appear to be both among the oldest genes and the first expressed by newly ‘born’ cells. That overlap of early expression and great age is similar to the “recapitulation” in animal embryos. Hence it suggests that early life forms were sophisticated enough to use phased development, as well as biofilms.
This theme of ‘phases of life’ is explored in one of my creepier short stories, “Chrysalis,” and it has even creepier implications for human destiny. Find it in INSISTENCE OF VISION.
A study found a locus of in the brain - ‘anxiety cells’ in the hippocampus — which apparently can be controlled by a beam of light. Okay, so far in mice, using , inserting miniature microscopes into the brains of lab mice who are put into anxiety inducing platforms without reassuring walls. Using a technique called to shine a beam of light onto the cells in the vCA1 region, the researchers were able to effectively silence the anxiety cells and prompt confident, anxiety-free activity in the mice.
A cave bear has been uncovered in Siberia, not just bones but soft tissues, fir, even its intact nose.
Okay guys, they don’t need us anymore except to lift boxes to high shelves, and they’ll uplift orangutans to do that. We’re screwed. Might as well serve until no longer wanted even as pets. “For the first time, scientists have been able to grow spermatogonial stem cells (SSCs), which are the cells that eventually develop into fully-fledged sperm, in a laboratory environment.”
Using a technique called optogenetics to shine a beam of light onto the cells in the vCA1 region, the researchers were able to effectively silence the anxiety cells and prompt confident, anxiety-free activity in the mice.#armymadsci
== Pragmatic bio-news? ==