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Leg of a Horse Compared with that of the Giant Moa

Leg of a Horse Compared with that of the Giant Moa.jpg Koch's Hydrarchus. Composed of Portions of the Skeletons of Several ZeuglodonsThumbnailsNature's Four Methods of Making a Wing - Bat, Pteryodactyl, Archæopteryx, and Modern BirdKoch's Hydrarchus. Composed of Portions of the Skeletons of Several ZeuglodonsThumbnailsNature's Four Methods of Making a Wing - Bat, Pteryodactyl, Archæopteryx, and Modern BirdKoch's Hydrarchus. Composed of Portions of the Skeletons of Several ZeuglodonsThumbnailsNature's Four Methods of Making a Wing - Bat, Pteryodactyl, Archæopteryx, and Modern BirdKoch's Hydrarchus. Composed of Portions of the Skeletons of Several ZeuglodonsThumbnailsNature's Four Methods of Making a Wing - Bat, Pteryodactyl, Archæopteryx, and Modern BirdKoch's Hydrarchus. Composed of Portions of the Skeletons of Several ZeuglodonsThumbnailsNature's Four Methods of Making a Wing - Bat, Pteryodactyl, Archæopteryx, and Modern BirdKoch's Hydrarchus. Composed of Portions of the Skeletons of Several ZeuglodonsThumbnailsNature's Four Methods of Making a Wing - Bat, Pteryodactyl, Archæopteryx, and Modern BirdKoch's Hydrarchus. Composed of Portions of the Skeletons of Several ZeuglodonsThumbnailsNature's Four Methods of Making a Wing - Bat, Pteryodactyl, Archæopteryx, and Modern Bird