Guesses.... all the work that Paleontologists have done is all just guesses. Just a wave of your hand simply dismisses it.
Ok have a good night.
I really don't know why I keep getting accused of "dismissing" the work of all these scientists when I'm just asking questions (and not getting any answers). If I say I get that some animals have shown "evidence" of micro-changes, I'm then told I'm dismissing "evidence" by waiving my hand.