Anyone Seen Evolution?

Jeff Bush jbush at
Sun Nov 17 13:38:42 EST 1996

I recently saw on the news a group of mutated frogs (most likely occured 
from the waste we produce).  These frogs were surviving, but these 
mutations didn't seem to improve the frogs any.  So I was just 
Has anyone ever observed a true *benefitial* mutation occuring in nature?

And by the way, don't give me examples of Natural Selection, I know the 

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