Skeleton of the Swan

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“The external air penetrates into every part of their body by the respiratory tubes, which ramify the whole cellular tissue. Wings alone would fail to support the bird.”


Bird Anatomy


Hazlitt Alva Cuppy PH.D., Editor Beauties and Wonders of Land and Sea (Springfield, OH: Mast, Crowell & Kirkpatrick, 1895)


TIFF (full resolution)

1971×2400, 530.2 KiB

Large GIF

840×1024, 80.8 KiB

Medium GIF

525×640, 41.6 KiB

Small GIF

262×320, 14.5 KiB