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Biologists long assumed that one-way air flow was a special adaptation in birds driven by the intense energy demands of flight. But now scientists have shown that bird-like breathing also developed in green iguanas ? reptiles not known for high-capacity aerobic fitness. The finding bolsters the case that unidirectional bird-like flow evolved long before the first birds.
Published On: 18-Nov-14 06:46 AM
Source: ScienceDaily
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Published On: 18-Nov-14 06:46 AM
Source: ScienceDaily
Go to Original Article