Re:US Birth Rate Hits New Low – A Nation of Singles
by Daniel_Newby on Monday December 24, 2012 @06:53AM
(#4962602)
> If genetics can eventually correct this trend, then why hasn't it already done so?
Is this a joke? Evolution takes many generations. It has been less than 3 generations since 1957.
The question then becomes whether evolution has any pre-existing raw material to work with. The data give a resounding yes. Attention deficit hyperactuvity disorder is almost certainly genetic, and is strongly correlated with early reproduction and more children. Ditto for IQ.
And societies are also subject to cultural evolution. Catholicism and Mormonism confer a high fertility rate, and it appears to be heritable.
Is this a joke? Evolution takes many generations. It has been less than 3 generations since 1957.
The question then becomes whether evolution has any pre-existing raw material to work with. The data give a resounding yes. Attention deficit hyperactuvity disorder is almost certainly genetic, and is strongly correlated with early reproduction and more children. Ditto for IQ.
And societies are also subject to cultural evolution. Catholicism and Mormonism confer a high fertility rate, and it appears to be heritable.