Although evolutionists claim that reptiles evolved into birds, the lungs of birds are very different than those of reptiles. 1
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Sarfati, J. D., & Matthews, M. (1999). Refuting Evolution. Green Forest, AR: Master Books.
- Sarfati, 1999, p. 67: style lungs of reptiles evolve gradually into avian lungs? The hypothetical intermediate stages could not conceivable function properly, meaning the poor animal would be unable to breathe. So natural selection would work to preserve the existing arrangement, by eliminating any misfit intermediates.
Also, even assuming that we could construct a theoretical series of functional intermediate stages, would natural selection ‘drive’ the changes? Probably not — bats manage perfectly well with bellows-style lungs — some can even hunt at an altitude of over two miles (three km). The avian lung, with its super-efficiency, becomes especially advantageous only at very high altitudes with low oxygen levels. There would thus have been no selective advantage in replacing the reptilian lung.” ↩