Is it really the same type of canyon, eroded through huge layers of rocks that had been deposited in various kinds of environments (including deserts)? And where is this evidence of a global flood? There is certainly evidence of large local and regional floods, such as the flooding of the Black Sea when the Mediterranean burst through the Bosphorus a couple of thousand years ago, but there is no evidence of a global flood. On the other hand, if you have any, please present it.
X: This indicates the unique avian one-way lung design which could not evolve into a two-way bellows system like ours without asphyxiating the poor bird.
Y: And it is claimed where exactly that the mammalian respiratory system evolved from that of birds or dinsaurs?
Who said that?
Maybe you should recheck your first statement, but no matter, I'll accept that it wasn't what you meant.