BLUE
Login
PostsUsersHashtags
EHedhagen.net

Why is "race" so important? The "Santa Barbara" school of evolutionary psychology proposes 2 complementary reasons: 1. Race is a cue of coalition membership, & coalitions trump race 2. Race is a cue of the local ecology, & local ecology trumps race👇 🧪 #BioAnthwww.sciencedirect.com/science/arti...

Can race be replaced? Ecology and race categorization. Why do people categorize others by race? Building on recent work integrating affordance management with a life history perspective, we propose that one reason perceivers categorize others by race is because race is a cue to the environments/ecologies in which groups live. In the U.S., because Black and White individuals differentially live in environments that vary in ecological harshness/unpredictability, race may be used as a cue of a person's home ecology. In three experiments (undergraduate and online U.S. samples; N = 1260) with the memory confusion paradigm (“who-said-what”), when American perceivers are presented with information on both a person's race (i.e., Black/White) and the ecologies in which they live (i.e., harsh/hopeful), racial categorization decreases, and ecology categorization emerges (Studies 1–3). Hence, in the minds of perceivers, the ecologies that others come from “replaces” others' race...
0
EHedhagen.net

Human genetic variation can reveal who was having sex with who, when & where (ancestry!), but it doesn't reveal much about their biology because the informative variants are mostly neutral or slightly deleterious (drift) 🧪 #BioAnthweb.stanford.edu/group/pritch...

Allele frequency variation across populations. As we'll discuss in this chapter, population structure (non-random mating) allows alleles and haplotypes to drift independently in different populations. This leads to differences in allele and haplotype frequencies across populations.
0
KLresourcefulsqrl.bsky.social

I’d love to be added to the list! (Bioanth aligned with medanth folks)

1
EHedhagen.net

Was warfare important in human evolution? A great new review of the evidence suggests the answer is yes 🧪 #BioAnthwww.sciencedirect.com/science/arti...

The controversial origins of war and peace: apes, foragers, and human evolution. The role of warfare in human evolution is among the most contentious topics in the evolutionary sciences. The debate is especially heated because many assume that whether our evolutionary ancestors were peaceful or warlike has important implications for modern human nature. One side argues that warfare has a deep evolutionary history, possible dating to the last common ancestor of bonobos, chimpanzees, and humans, while the other views war as a recent innovation, primarily developing with the rise of sedentism and agriculture. I show that although both positions have some support warranting consideration, each sometimes ignores uncertainties about human evolution and simplifies the complex reality of hunter-gatherer worlds. Many characterizations about the evolution of war are partial truths. Bonobos and chimpanzees provide important insights relevant for understanding the origins of war....
1
DRdrrgibsongirl.bsky.social

Doing my first monthly check-in emails for the students in my intro and bioanth classes, and these are not only a touching glimpse into their lives, but a reminder that VCU students are almost uniformly kind, dedicated, thoughtful, considerate, and hard-working. I love my job.

0
EHedhagen.net

The genomes of any 2 humans differ at 5 million sites. It was thought that these comprised 0.13% of the genome, but new tech reveals 31K very large structural variants (SV), so 0.76% of the genome varies 🧪 #BioAnthwww.annualreviews.org/content/jour...

Table of variants in the human genome
0
HomePopularExplore