Nicholas Posted June 12, 2009 Share Posted June 12, 2009 ScienceDaily (June 9, 2009) — Researchers at Oregon State University have made a fundamental new discovery about how birds breathe and have a lung capacity that allows for flight – and the finding means it's unlikely that birds descended from any known theropod dinosaurs. Find the article HERE! Auspex, I really would like your input on this. Link to comment Share on other sites More sharing options...
PaleoRon Posted June 12, 2009 Share Posted June 12, 2009 They mention differences in dinosaur and bird lungs several times. Where are the dinosaur lungs that they have been studying? Did I miss a momentous discovery? Link to comment Share on other sites More sharing options...
Auspex Posted June 12, 2009 Share Posted June 12, 2009 ...it's unlikely that birds descended from any known theropod dinosaurs. The "birds descended directly from dinos" idea has never held water. Fundamentally, it was more the other way around. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
tracer Posted June 12, 2009 Share Posted June 12, 2009 The "birds descended directly from dinos" idea has never held water.Fundamentally, it was more the other way around. well, that makes sense if they were descending. wait... anson, you need to code a filter that makes it where people can't post replies to stuff they don't understand at all. you could call it the "tracer blocker". Link to comment Share on other sites More sharing options...
ashcraft Posted June 13, 2009 Share Posted June 13, 2009 This is fundamental to bird physiology," said Devon Quick, an OSU instructor of zoology who completed this work as part of her doctoral studies. "It's really strange that no one realized this before. The position of the thigh bone and muscles in birds is critical to their lung function, which in turn is what gives them enough lung capacity for flight." I would strongly disagree with this statement. Flight had been achieved by birds already, this allowed for more vigorous flite. Mammals also can obviously fly, with lung capacity that is much lower then modern birds. I hope she mis-spoke, or is misquoted. Brent Ashcraft ashcraft, brent allen Link to comment Share on other sites More sharing options...
trilo-biker Posted June 13, 2009 Share Posted June 13, 2009 ok I have a question though so are arphtopterexes (i know I misspelled that)actully not a link between dinos and birds but a early bird thats a link to a diffrent species or is it a dinosaur that turned out like a bird due to convergent evolution Link to comment Share on other sites More sharing options...
Auspex Posted June 13, 2009 Share Posted June 13, 2009 ok I have a question though so are arphtopterexes (i know I misspelled that)actully not a link between dinos and birds but a early bird thats a link to a diffrent species or is it a dinosaur that turned out like a bird due to convergent evolution Archaeopteryx was an expression of certain genetic propensities, rendering it more birdlike than anything known to have come before, but ultimately leading nowhere. Those same propensities were expressed again and again; the basic architecture that finally persisted and lead to so much variation in the details arose in the Cretaceous and is today the most successful terrestrial vertebrate. The non-avian theropods were descended from some of the early near-bird "experiments" that wound up going a different direction. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
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