One big difference is we put down all unpleasing cats and dogs that no one will take in.
You miss the point entirely. Breed X is valued (found pleasing as you say) for some set of traits often appearance related. What people have noticed, is that varied temperaments come along as well. If breeders could randomly pick a temperament to go with appearance, we would have much different breeds. Unfortunately, they can't do this.
And yes, dogs have had quite high select pressure applied do to breeding. This illustrates the morphological plasticity of us animals quite nicely.
There is no scientific reason to deny anything.
An astonishingly nonsensical statement.
For example, science gives us abundant reason to deny the claim that the acceleration caused by gravity at the earth surface is 30m/s^2. You get the drift?
If race A score 10 percent higher on IQ test (provided these tests are truly valid) than race B but 5% lower than race C, what does that say about Abdul, Buffy, or Chang?
It says nothing about Abdul, Buffy, or Chang. Why do we have to force any one of these individual to carry the weight of the short comings of a group that numbers in billions?
Until we know what is what, the majority of us , who knows practically nothng about these scientific matters (myself included) should be very humble and stay away from pushing our views in these subjects onto others.
While your previous statement about science makes me want to agree wholeheartedly with your statement above regarding your knowledge of science, you actually redeem things a bit above.
If race A is 10% > race B but 5% < race C, it is indeed not meaningful to say anything about A1, B1, or C1 unless one knew that the variance for A, B, and C was low wrt to the mean differences. That is, if the distributions did not overlap at all, then one could (with high confidence) say something about A1, B1, C1.
On the other hand, even if the distribution is quite wide (high variance), one could say with reasonable confidence what the results of a group of 30 of each of A, B, and C would do. Understanding what the separation of mean, the dependence on variance, and the required minimum sample size needed to make a statement with confidence xxx is what the field of statistics is all about. |