Life Science

Next week, I think I will!

Mark Your Cosmic Calendar: 774/775 One wonders if anyone felt it. Did Charlemagne feel it as he led his forces across Pagan Saxon Westphalia, knocking down Irminsuls and making everyone pretend to be Christian or else? Did the people of Bagdad, just becoming the world’s largest city, notice anything aside from their own metro-bigness? Did…

Living in Seattle fosters a certain pessimism when it comes to large companies.  Boeing has always been a poster child for employment uncertainty, regularly hiring large numbers of people and just as regularly, laying them off.  Now, we have Microsoft and Amgen joining the club, with Microsoft layoffs impacting an estimate 1350 people in the area, and…

The cause of “angel wing”, a deformity found in waterfowl such as ducks, geese and swans has been uncovered. Sadly, it is often caused by well-intended people feeding birds foods that are too high in proteins or carbohydrates (bread, crackers and popcorn anyone?). Not surprisingly, this condition mainly impacts birds that live in public areas.…

“HIV mutates a lot”. People ‘get’ that. Why is HIV hard to stop? Why is HIV hard to treat? “HIV mutates a lot”. But HIV does not mutate willy-nilly. It mutates at an evolutionarily defined rate. The reverse transcriptase enzyme makes mistakes during replication that are beneficial to HIV– creating a diverse population, a quasispecies,…

Mary’s Monday Metazoan: Cartilage!

“Ignorance is hardly unusual, Miss Davar. The longer I live, the more I come to realize that it is the natural state of the human mind. There are many who will strive to defend its sanctity and then expect you to be impressed with their efforts.” -Brandon Sanderson At the risk of inflaming everyone who…

  Toxoplasma gondii is a parasite found in cat poop that can make both people and cats ill. It can infect any warm-blooded animal, including reportedly 60 million Americans. People infected with T. gondii typically have flu-like symptoms. Dr. David J Bzik in the Department of Microbiology and Immunology at Dartmouth recently said, “We know biologically…

Science and its interpretation is wonderful. Today I saw a post on Twitter from @LAbizar, referencing an @GEN, post that stated 8.2% of Human DNA is Functional with a link to a GEN article: “Surprise: Only 8.2% of Human DNA Is Functional.” The GEN writeup cited a PLoS Genetics article, “8.2% of the Human Genome Is Constrained: Variation in Rates of…

I like this hypothesis

But we have to be clear that it is only a hypothesis at this point. I was reading about domestication syndrome (DS) — selecting animals for domestication has a whole collection of secondary traits that come along for the ride, in addition to tameness. We are selecting for animals that tolerate the presence of humans,…