Gerald Crabtree | The k2p blog
Posts Tagged ‘Gerald Crabtree’
There is as yet no evidence, no hard data, no way of testing his speculation but Gerald Crabtree, a genetics Professor at Stanford University, believes that human evolution no longer selects for or favours intelligence. Our intelligence may have peaked as hunter-gatherers.
The intricacies of modern, “civilised”, human society where “weak” members of society are cared for by others, are such that many genetic characteristics have effectively been decoupled from survival and reproduction. “Intelligence” as one such genetic charateristic is no longer something that affects survival or reproduction. In fact from the fertility rates around the world today it is already apparent that the greater the wealth (GDP) the lower the reproduction rate. I am not sure if it can be shown explicitly but I suspect that a similar relationship may apply and that the greater the “intelligence” the lower the reproduction rate.
Crabtree has published 2 papers in Trends in Genetics
Gerald R. Crabtree. Our fragile intellect. Part I. Trends in Genetics, 2012; DOI: 10.1016/j.tig.2012.10.002
Gerald R. Crabtree. Our fragile intellect. Part II. Trends in Genetics, 2012; DOI: 10.1016/j.tig.2012.10.003
Human intelligence and behavior require optimal functioning of a large number of genes, which requires enormous evolutionary pressures to maintain. A provocative hypothesis … suggests that we are losing our intellectual and emotional capabilities because the intricate web of genes endowing us with our brain power is particularly susceptible to mutations and that these mutations are not being selected against in our modern society.
http://en.wikipedia.org/wiki/Dysgenics
Where Dysgenics Goes Wrong:
Tags:Evolution, Evolutionary pressure, Gerald Crabtree, Intelligence
Posted in Evolution, Intelligence | 4 Comments »
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