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The point is that traits breed true. Your DNA consists of DNA you inherited from both of your parents. YOU are a composite of both of them, not an identical copy. This is how evolution works. There are no wild cows that bear any resemblence to the modern cows we have domesticated. The modern horse exists because we have bred the wild horse out of it. If artificial selection can make such huge changes in a relevatively shor period of time, imagine what natural selection can do over theeons of time. And what it can and has produced is all the diversity of life on Earth.In nature, evolution works not on individuals of a species, but on populations.
The point is that traits breed true. Your DNA consists of DNA you inherited from both of your parents. YOU are a composite of both of them, not an identical copy. This is how evolution works. There are no wild cows that bear any resemblence to the modern cows we have domesticated. The modern horse exists because we have bred the wild horse out of it. If artificial selection can make such huge changes in a relevatively shor period of time, imagine what natural selection can do over theeons of time. And what it can and has produced is all the diversity of life on Earth.
In nature, evolution works not on individuals of a species, but on populations.
