Something I found on creationscience.com
Figure 3: Dog Variability. When bred for certain traits, dogs become different and distinctive. This is a common example of microevolution?changes in size, shape, and color?or minor genetic alterations. It is not macroevolution: an upward, beneficial increase in complexity, as evolutionists claim happened millions of times between bacteria and man. Macroevolution has never been observed in any breeding experiment.
Here is a simple point on how reatarded and stupid and oversimplifying AND most importantly how intellectually devious the xtians are.
Macroevolution is change over time....relative long time. You cannot show macroevolution by breeding dogs.. idiots... it is impossible, you cannot apply the selective pressures necessary to select for genes that would change a dog into another species in the short amount of time a breeder has..it's impossible....the theists know this but will lie and tell you that because it is not observable in dogs then.. obviously GOD CREATED DOGS and here is even more evidence of this idiocracy...
the mechanisms involved in microevolution are the exact same mechanisms involved in macroevolution. But you have tospan this over thousands and millions of years. Species change and re-form to adapt to the ever changing environments due to natural selection, NOT selective breeding, in short, a form of natural genetic engineering.. you are also seeing it now with designer pet reptiles "pie bald" pythons, red bearded dragons etc.... so in essence to use dogs as an example to discredit evolution is just plain intellectually wrong. And to do so by the theists is not surprising seeing as they lie about everything else.