That's not regression to the mean. Regression to the mean is a statistical artifact that only occurs when measuring any two variables with asymetric sampling. It has nothing to do with trends. It happens in any scatter plot with a non-unit correlation coefficient.
That's not regression to the mean. Regression to the mean is a statistical artifact that only occurs when measuring any two variables with asymetric sampling. It has nothing to do with trends. It happens in any scatter plot with a non-unit correlation coefficient. Lots of gibberish which does not refute the point that the beaks of the finches grow smaller and larger and back again with the change in precipitation. They go back and forth, they do not go 'out of control' either way. The importance of the point is that we have adaptation without mutation, as I stated before.