Actually you have absolutely NO evidence that supports the "evolution of life" on earth. None. I've challenged you guys a thousand times on these threads and the stock answer is that the question is irrelevant.
The evidence that you point to is not evidence of the "evolution of life", but evidence of the evolutionary adaptability that was designed into the creation.
In this case you have a frog evolving over a period of 8000 years into a frog. Well, you multiply that change by 8000 and you've chewed up 64 million years and you still have a frog.
All you have shown is that evolutionary characteristics of survival have been designed into the creation. You have not provided a single shred of evidence for the "evolution of life", you have only provided evidence for the inherent design of the adaptability of the creation.
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Ha ha ha ha, ho, ha, hee, ha, ha, ha ha ha ha, ho, ha, hee, ha, ha!!! Too funny.
Oh, wait. You were serious.
Me personally, no, I'm not an evolutionary biologist.
However, there is a wealth of information out there regarding what course evolution has taken in the distant past. There is a wealth of information showing that genome is equipped to make evolutionary changes and evidence in the inherent structure of our DNA that it has done so in the past. All the data intersects at the same conclusion - that life on earth has evolved and it continues to do so.
You have a case of a mere 8000 years (a blink of an eye in the earth's history) producing a marked case of speciation - the first step of evolution. What mechanism do you believe exists that would prevent further change (call it "adaptation" or whatever you want) from happening? Do you think it's possible that frogs and toads have a common ancestor? Or did God create frogs and toads in their different "present forms"?