More than one reader has mentioned to me the absence of science posts on this site, and Malgorzata, who translates them into Polish for Listy, has also noted this. The reason is not that they take work, which they do (about three or four times the time of a “normal” post), but because I haven’t found any papers worth posting about lately. I’ve read about six, and none of them have panned out into something interesting enough to call to your attention.
All this is by way of saying that if you’re a biologist who reads the evolution literature, or a layperson who sees some publicity for a recent piece of cool research, please call it to my attention. I’m not sure whether the absence of work that excites me (and is suitable for the readers) is due to the pandemic, which may slow things down, or it’s just a statistical quirk. Anyway, let me know if you see something interesting (with the results not too arcane, but which might intrigue the diverse readership here).
Thanks.
I know that I am totally not in your league (I am also not a biologist or anything), but I have just been thinking the same today. I normally blog about exciting things happening in science (things that I normally don’t understand, but who cares), but nothing excites me at the moment. I wondered whether that was just pandemic malaise or something else…. anyway… I feel a bit bereft…
I saw this one just this morning but have no idea if it is worth any discussion.
https://www.newscientist.com/article/2146241-controversial-footprints-suggest-we-evolved-in-europe-not-africa/
That is interesting.
That is wild. I suppose it is possible a tribe of hominins wandered north 6 million years ago, but that would upend human paleontology I’d think.
It’s nearly three years old and the title promises something more controversial than the article delivered.
I was expecting it to argue that Homo sapiens evolved outside Africa, but it’s actually about an animal that existed soon after the slit with chimpanzees.
OK.
How about how viruses evolve and mutate, and jump across species?
What’s happening on Botany Pond these days? I haven’t seen a Duck Report in a while. Or did I just miss one? I check the webcam once in a while but there’s virtually nothing going on when I look.
No, but I have a spate of photos and videos and I’ll do a duck post soon. Dorothy’s six little ones are still with us and growing fast, and about half of Honey’s brood (half of which was Dorothy’s) have flown away. We’re down to Honey, who’s molting, and about nine hens, as well as a few itinerant hens which I feed.
Stay tuned.
I get my general science fix from Science News (https://www.sciencenews.org/) and Science Daily (https://www.sciencedaily.com/)
Did you know that fish eggs can still hatch after being eaten and pooped out by ducks?
If plant seeds are any clue, then I’d expect some fish eggs to be able to hatch only after being eaten and pooped out, and removal of birds from the ecosystem to result in local extinction of the fish species!
I found interesting this article from Quanta on how a levy walk (a type of random walk with occasional long stretches) might help animals hunt.
https://www.quantamagazine.org/random-search-wired-into-animals-may-help-them-hunt-20200611/
I once had a book by Vincent Sarich (professor of anthropology, UC Berkeley, deceased 2012) that promoted the dog breeds/human races analogy. In this new peer reviewed article (Human races are not like dog breeds: refuting a racist analogy) a team of five anthropologists and geneticists, who attended Penn State together as grad students, claim to have “taken down” the wide spread analogy of Sarich, and many others.
https://evolution-outreach.biomedcentral.com/articles/10.1186/s12052-019-0109-y and https://phys.org/news/2019-07-refute-widespread-racist-analogy-human.html
Did they?
Barry–
I’ve never heard of Sarich’s widespread analogy of dog breeds and human races. I’m a reasonably well-read evolutionary biologist, know of Sarich’s work in molecular systematics, and one of my particular interests is geographic variation (the distribution of variation within and among populations of a species’ range). I haven’t checked the links you give yet, but I presume the authors do think it is widespread. I’m curious to know if you first learned about the analogy from Sarich’s book, and if in your experience it’s adoption could be considered widespread?
I’d also be interested for other readers to weigh in here on their exposure to this analogy.
(The analogy, by the way, is not a good one at all, and it wouldn’t require any deep analysis to show this.)
I’ve never heard of Sarich, but I’ve heard the analogy somewhere and didn’t think much of it.
[Instead I adopted it for analogizing Africans vs Neanderthals vs Denisovans morphology. But that’s not a good fit after the genomics came in.]
Oops. Confused response – Denisovans come in as genome first. But it was somewhere there I grokked the fit was not good.
Not having access to any journals, I don’t come across much new science except in the form of pop-sci online articles, many of which are poorly written, infested with lol-speak, and on sites I choose to avoid. It feels more and more like the adults have left the room and the kids are playing with the computer.
I was hoping you would discuss the issue of South Americans and Polynesians and what else is known about requisite technology to make the trip, etc, DNA, past investigations.
https://www.sciencenews.org/article/south-americans-may-have-traveled-polynesia-800-years-ago
Try Gregory Cochran’s blog (https://westhunt.wordpress.com/) if you’re interested.
Oh yes, that is a good one! A single introgression, upstream the gene flow to Easter Island, on the Marquesas in the trade wind belt.
Layman/more context here: https://arstechnica.com/science/2020/07/genetic-data-suggests-polynesians-and-native-americans-met/ . Subtitled, but YMMV: “We may have focused on the wrong island, maybe even the wrong voyagers.”
I was interested in this article about the potential use of far-ultraviolet-C light to kill off coronaviruses:
https://www.nature.com/articles/s41598-020-67211-2
I and my colleagues are already fed up with the widespread use of chemical disinfectants, we feel our airway mucosa is being successfully destroyed by them even without the help of an actual pathogen!
That’s a coincidence, I saw a paper that seems to lie close to the interests here, though admittedly arcane and I also haven’t put in the leg work myself … But in case it is interesting:
“Genomic regions influencing aggressive behavior in honey bees are defined by colony allele frequencies”, Avalos et al, PNAS, 2010, https://www.pnas.org/content/early/2020/07/01/1922927117 . “… We conclude that group genetics dominates individual genetics in determining the fatal decision of honey bees to sting.”
TL;DR – and I haven’t read it thoroughly: They use GWAS to find a locus that seems to be under selection, but the best correlation is between colony aggression and specific alleles. They don’t seem to look at it as kin selection, but I was curious of other analyses.
That was 2020 – May 18, 2020 in fact.
How about this?
https://www.smithsonianmag.com/science-nature/copper-virus-kill-180974655/