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{{QuoteBox|It must be admitted, however, that it is a considerable strain on one’s credulity to assume that finely balanced systems such as certain sense organs (the eye of vertebrates, or the bird’s feather) could be improved by random mutations.<ref>Brown, Walt, [http://www.creationscience.com/onlinebook/ReferencesandNotes10.html In the Beginning: Compelling Evidence for Creation and the Flood]</ref>}}

{{QuoteBox|It must be admitted, however, that it is a considerable strain on one’s credulity to assume that finely balanced systems such as certain sense organs (the eye of vertebrates, or the bird’s feather) could be improved by random mutations.<ref>Brown, Walt, [http://www.creationscience.com/onlinebook/ReferencesandNotes10.html In the Beginning: Compelling Evidence for Creation and the Flood]</ref>}}

Recent evidence of the evolution of feathers in theropods in the Jurassic Era, however, has presented a compelling model of the evolution of flight feathers from simpler structures. It should be noted that Mayr's words, quoted here, preceded the recent flurry of fossil data on feather evolution by over 50 years and thus cannot be considered a reliable guide to the current state of knowledge of the evolution of birds and other dinosaurs.

Recent evidence of the evolution of feathers in theropod dinosaurs, the group to which birds belong, in the Jurassic Era, however, has presented a compelling model of the evolution of flight feathers from simpler structures. It should be noted that Mayr's words, quoted here, preceded the recent flurry of fossil data on feather evolution by over 50 years and thus cannot be considered a reliable guide to the current state of knowledge of the evolution of birds and other dinosaurs.

[[Scientific American]] stated:

[[Scientific American]] stated: