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Out of Thin Air
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Discusses the effect of changing oxygen levels in Earth's atmosphere on evolution and mass extinctions, and presents the theory that saurischian dinosaurs were able to weather two mass extinctions because of a new, more efficient respiratory system, which was in …
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Discusses the effect of changing oxygen levels in Earth's atmosphere on evolution and mass extinctions, and presents the theory that saurischian dinosaurs were able to weather two mass extinctions because of a new, more efficient respiratory system, which was in turn inherited by their descendants the birds.
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"Discusses the effect of changing oxygen levels in Earth's atmosphere on evolution and mass extinctions, and presents the theory that saurischian dinosaurs were able to weather two mass extinctions because …"
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