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ABCNEWS.COM on dinosaur lungs
ABCNEWS.COM today, November 14, has a feature on the current Science
magazine (Nov. 14) article claiming that bird lungs are so dissimilar to
dinosaur lungs that one could not have come from the other.
"It's almost impossible," says John Ruben, a zoologist at Oregon State
and one of the paper's authors. "It's almost completely antithetical. It
doesn't fit. It is just totally inconsistent."
Such a lung would be unlikely to evolve into a bird lung, which is
entwined among the other internal organs. Ruben believes that both lungs
evolved independently from a hypothetical common ancestor.