Quote:
Originally posted by sacX
Well technically you could argue that dogs that would not naturally interbreed are different species. A geographical barrier or a structural difference that prevent interbreeding can lead to speciation.
You're caught up in the definition. The accumulation of these differences over time leads to speciation. The huge variation in dogs over 2000 years is undeniable that selective pressures can lead to large morphological changes.
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Scientists can't even agree if and when speciation occurs.
Interbreeding dogs is no different than your parents getting together and having you as their child. They each had their own set of genes and passed some down to you. You received genes from both parents. Therefore you probably look like both of them, one of them, or none of them. This is not evidence for evolution. It's evidence for my theory that man was always man. Has been for the past few thousand years and appears that it's the way he will be for time immortal to come.