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SparkleLeaf Reports from The department of energy directly contradict your premise
Okay, I will take your word for it. I didn't read or even scan the whole report. There are alot of things I'm interested in, but I can't read every report on every subject.
What is your theory as to why history seems to go back so much further than that? This should be downright fascinating.
You've completely misinterpreted my statement, although my statement could probably have been more clear. My great-great-great-great-great grandparents are not alive (and I suspect yours aren't either) and I will never see or personally know my great-great-great-great-great grandchildren. They will exist, for sure (unless we destroy the planet before they're born), but I meant that there is no personal relationship between generations that far apart, in birds or humans. I interpreted your original post (again, probably incorrectly, and perhaps you too could have been more clear) as suggesting that birds need the opportunity to have direct interaction with their "great-great-great-great-great grandchildren."