How many species concepts are there? by John Wilkins, 2010:
"on another count (where I asterisked what I thought were independent concepts in that list) there are 7 species concepts: agamospecies (asexuals), biospecies (reproductively isolated sexual species), ecospecies (ecological niche occupiers), evolutionary species (evolving lineages), genetic species (common gene pool), morphospecies (species defined by their form, or phenotypes), and taxonomic species (whatever a taxonomist calls a species)."
"Consider lions and tigers. They separated from each other, evolutionarily, about 3.7 million years ago. They can interbreed, however, forming ligers (male lion, female tiger cross) and tiglons (male tiger, female lion cross). In the wild, though, they don't. [...] while it can happen, when lions and tigers share a geographical range, they tend not to interbreed. Ecology and reproductive reach keep them separate."
"on another count (where I asterisked what I thought were independent concepts in that list) there are 7 species concepts: agamospecies (asexuals), biospecies (reproductively isolated sexual species), ecospecies (ecological niche occupiers), evolutionary species (evolving lineages), genetic species (common gene pool), morphospecies (species defined by their form, or phenotypes), and taxonomic species (whatever a taxonomist calls a species)."
"Consider lions and tigers. They separated from each other, evolutionarily, about 3.7 million years ago. They can interbreed, however, forming ligers (male lion, female tiger cross) and tiglons (male tiger, female lion cross). In the wild, though, they don't. [...] while it can happen, when lions and tigers share a geographical range, they tend not to interbreed. Ecology and reproductive reach keep them separate."
Times of Israel article justifies the existence of Israel with typical leftist anti-colonial rhetoric:
"Claim: Zionism is Racism/Colonialism. Therefore, the October 7th Attacks were justified because of Israeli colonialism. Truth: Actually, the need for Zionism emerged out of racism against Jews, during the time that colonialism was disintegrating worldwide. [...] The UN Partition Plan (the precursor to the two-state solution) divided Israel roughly in half – half for the Jews and half for the Arabs. The Jews accepted it, and the Arabs rejected the plan. [...] Zionism is actually anti-colonialism. It is the removal of the British colonial powers and the return of the land to indigenous people, the Jewish people, in the same geographic location of the original Jewish civilization thousands of years ago. Zionism as a concept does not specify specific borders (there’s room for two states!), and it simply is the idea that Jews as a people have the right to self-determination."
"Claim: Zionism is Racism/Colonialism. Therefore, the October 7th Attacks were justified because of Israeli colonialism. Truth: Actually, the need for Zionism emerged out of racism against Jews, during the time that colonialism was disintegrating worldwide. [...] The UN Partition Plan (the precursor to the two-state solution) divided Israel roughly in half – half for the Jews and half for the Arabs. The Jews accepted it, and the Arabs rejected the plan. [...] Zionism is actually anti-colonialism. It is the removal of the British colonial powers and the return of the land to indigenous people, the Jewish people, in the same geographic location of the original Jewish civilization thousands of years ago. Zionism as a concept does not specify specific borders (there’s room for two states!), and it simply is the idea that Jews as a people have the right to self-determination."
Forwarded from LeakyVax
UK: Average IQ of ethnic groups correlates strongly with their socioeconomic status
"In the UK, immigrant groups frequently have lower mean socioeconomic status (SES) than do White British, which is a source of concern for the British government. Group-level SES tends to show positive relationships with cognitive ability scores. Thus, the authors estimate the mean cognitive and SES scores of various ethnic groups and test empirically if they correlate. They compute SES and cognitive ability scores using high-quality representative samples of adults. They then computed correlations between the two measures. General SES and group-cognitive ability correlated strongly at r = .59 to r = .79 (N = 18 groups). Finally, the authors computed cognitive scores predicted by the nation or region-of-origin of the ethnic groups and calculated correlations between these expected scores and the measured scores. The predicted and measured scores correlated strongly at r = .93 (N = 16 groups). The authors conclude that ethnic differences in SES are partly linked to differences in cognitive ability"
(Full Article)
"In the UK, immigrant groups frequently have lower mean socioeconomic status (SES) than do White British, which is a source of concern for the British government. Group-level SES tends to show positive relationships with cognitive ability scores. Thus, the authors estimate the mean cognitive and SES scores of various ethnic groups and test empirically if they correlate. They compute SES and cognitive ability scores using high-quality representative samples of adults. They then computed correlations between the two measures. General SES and group-cognitive ability correlated strongly at r = .59 to r = .79 (N = 18 groups). Finally, the authors computed cognitive scores predicted by the nation or region-of-origin of the ethnic groups and calculated correlations between these expected scores and the measured scores. The predicted and measured scores correlated strongly at r = .93 (N = 16 groups). The authors conclude that ethnic differences in SES are partly linked to differences in cognitive ability"
(Full Article)
The average age of menarche decreased from 16.5-years-old in 1840 to 13-years-old in 1995.
This trend of decline is consistent across races in the developed world, but there are significant race differences in average age of menarche; e.g. in America, the White mean is around 13, while the Black is around 12.
Early menarche is associated with a variety of physical and psychological problems, including:
anxiety
depression
suicidal behavior
substance abuse
early pregnancy
STDs
decreased height
hypercholesterolemia
heart disease
stroke
diabetes
breast cancer.
The decreasing age of menarche can be partially attributed to a variety of environmental factors but I suspect that post-industrial dysgenics is the main driving force. Individuals with worse genetic health exhibit r-selected ("live fast die young") behaviors, such as increased sexual desire, earlier age of reproduction, and, of course, earlier age of menarche.
Sources:
Rees 1995
Talma 2013
Reagan 2012
Lacroix 2023
Sýkorová 2021
This trend of decline is consistent across races in the developed world, but there are significant race differences in average age of menarche; e.g. in America, the White mean is around 13, while the Black is around 12.
Early menarche is associated with a variety of physical and psychological problems, including:
anxiety
depression
suicidal behavior
substance abuse
early pregnancy
STDs
decreased height
hypercholesterolemia
heart disease
stroke
diabetes
breast cancer.
The decreasing age of menarche can be partially attributed to a variety of environmental factors but I suspect that post-industrial dysgenics is the main driving force. Individuals with worse genetic health exhibit r-selected ("live fast die young") behaviors, such as increased sexual desire, earlier age of reproduction, and, of course, earlier age of menarche.
Sources:
Rees 1995
Talma 2013
Reagan 2012
Lacroix 2023
Sýkorová 2021
I haven't posted any blog articles in a long time because they take too long to write & I'm easily distracted. Would people find it useful if I copied some of my better Telegram posts over to the blog, so they're archived? No news posts, just data stuff.
Anonymous Poll
87%
Yes
13%
No
Average IQ in China by province. First estimate is by Sebastian Jensen, second by some Chinese researchers for an iodine study.
IQ ranges from from ~80 to ~110 because China is a huge country and home to many diverse ethnic groups, most of which are lumped under a general "Han" umbrella due to Chinese state policy.
Northwest China is home to Uyghurs and other Central Asians (e.g. Kazakhs), alongside a few Indo-European Pamiris who are related to Tajiks. Inner Mongolia is home to Mongols and other groups who are more closely related to Siberians than East Asians. Populations of south China are more closely related to Southeast Asians, like Cambodians and Malays. Those of northeast China in regions like Shandong are most closely related to other East Asians, like Koreans and the Japanese.
Most "Han" groups are a mix of ancient East and Southeast Asian ancestry on a north-south gradient, similar to Steppe vs Farmer ancestry in Europe.
IQ ranges from from ~80 to ~110 because China is a huge country and home to many diverse ethnic groups, most of which are lumped under a general "Han" umbrella due to Chinese state policy.
Northwest China is home to Uyghurs and other Central Asians (e.g. Kazakhs), alongside a few Indo-European Pamiris who are related to Tajiks. Inner Mongolia is home to Mongols and other groups who are more closely related to Siberians than East Asians. Populations of south China are more closely related to Southeast Asians, like Cambodians and Malays. Those of northeast China in regions like Shandong are most closely related to other East Asians, like Koreans and the Japanese.
Most "Han" groups are a mix of ancient East and Southeast Asian ancestry on a north-south gradient, similar to Steppe vs Farmer ancestry in Europe.