[scripter]

Their flow-through lungs would collapse if the femur moved like it does in mammals, reptiles and dinosaurs. It’s really strange that no one realized this before, said Devon Quick, professor of zoology at OSU

Maybe they weren't listening? I remember discussing much of what's in this article nearly 20 years ago.

[CharlesWayneCT]

They were too busy ridiculing people who didn’t believe the hype to realise they were wrong.

[muawiyah]

Regarding how birds breathe, I recall lectures in college in 1963 that pretty well covered the waterfront about how birds breathe and what they have to do and not do to keep on breathing.