To illustrate the effect of ongoing gene flow, I repeated the simulations above with stochastic immigration from unchanging parental populations (the continent-island admixture model [ 40, 41]).
It was a cataclysmic event for scholars, who believed at the time that the universe was unchanging.
Until Hubble published his findings, most astronomers had thought the universe was static, unchanging.
From out Earthly perspective, the universe appears to be unchanging.
The picture drawn of the 1percentt has been that of a static population, just as the 99percentt is often portrayed as unchanging.
The IV population-genetic structure has been shaped by virtually unchanging selection pressure for over 700 generations: the effects of mutations in this genetic background are therefore best interpreted in the environment to which the population has adapted.
Under isolation, there is no mixed population and no cross-parenting of immigrants and non-immigrants; the H/N and M/N proportions are unchanging over the eight generations (and beyond).
Context white, unchanging.
Some faces are unchanging.
