Vitamin D and Northern Natives – “[B]ecause northern natives have long inhabited high latitudes, natural selection should have progressively reduced their vitamin-D requirements. There is in fact evidence that the Inuit have compensated for decreased production of vitamin D through increased conversion to its most active form and through receptors that bind more effectively.” – from peter frost. cool!
Nudge thyself – “Economists have more to learn from the natural sciences if they are to claim a realistic model of human behaviour.”
Neuroscience Challenges Old Ideas about Free Will – “‘New questions also seem silly many times until a new perspective is accepted. I think we will get over the idea of free will and and accept we are a special kind of machine, one with a moral agency which comes from living in social groups. This perspective will make us ask new kinds of questions.'”
IQ Affirmation and Denial in the Times – from dennis
the menace mangan.
Deliberate Practice – Necessary But Not Sufficient – “We found strong evidence that abundant DP is necessary (but not sufficient) and estimated that the minimum requirement to achieve master level is 3,000 hours of DP. We also review evidence showing that other factors play a role in chess skill: general cognitive abilities, sensitive period, handedness, and season of birth.”
When Humans First Plied the Deep Blue Sea – 40,000 year old tuna catch in east timor.
Genome-wide Association of Copy-Number Variation Reveals an Association between Short Stature and the Presence of Low-Frequency Genomic Deletions – “Our results suggest that in individuals undergoing copy-number analysis for clinical indications, short stature increases the odds that a low-frequency deletion will be found. Additionally, copy-number variation might contribute to genetic variation in stature in the general population.”
The First North American Migration—Not a Strait Route? – clovis =
The ABCC9 of Sleep: A Genetic Factor Regulates How Long We Sleep – “ABCC9, a known genetic factor in heart disease and diabetes, also influences the duration of sleep in humans.”
bonus bonus: Life began with a planetary mega-organism – “[I]n order to cope, the early cells must have shared their genes and proteins with each other. New and useful molecules would have been passed from cell to cell without competition, and eventually gone global. Any cells that dropped out of the swap shop were doomed. ‘It was more important to keep the living system in place than to compete with other systems,’ says Caetano-Anollés. He says the free exchange and lack of competition mean this living primordial ocean essentially functioned as a single mega-organism.”
bonus bonus bonus: Diversity of Life Snowballed When Ancient Earth Was Frozen Solid
(note: comments do not require an email. great moments in evolution.)