It is speaking of a single species, microraptor. This doesn't mean that the analysis of this single species applies to ALL dino-bird intermediates.
There are many differences between birds and dinosaurs. Their lungs, reproductive system, etc.
There is strong evidence that non-avian dinosaurs had the same type of lung:
"Evidence for Avian Intrathoracic Air Sacs in a New Predatory Dinosaur from Argentina"
ABE: tried to add the link to the source, but it gets messed up by the board software somehow. A google search for the title should point you to the original source material.
Edited by Taq, : No reason given.
Edited by Taq, : No reason given.
Edited by Taq, : No reason given.
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