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This stylised bird skeleton highlights the synsacrum Pelvis of a Gull; formed by the Synsacrum (fused vertebrae placed centrally) and the two innominate bones either side The synsacrum is a skeletal structure of birds [ 1 ] and other dinosaurs , [ 2 ] pterosaurs, [ 3 ] as well as xenarthran mammals, [ 4 ] in which the sacrum is extended by ...
Swimming birds have a wide sternum, walking birds have a long sternum, and flying birds have a sternum that is nearly equal in width and height. [19] The chest consists of the furcula (wishbone) and coracoid (collar bone) which, together with the scapula , form the pectoral girdle ; the side of the chest is formed by the ribs, which meet at the ...
This image is a derivative work of the following images: File:Squelette_oiseau.JPG licensed with Cc-by-2.5, GFDL 2006-12-29T20:20:05Z Svtiste 892x1188 (140141 Bytes) Bird squeleton. Squelette d'oiseau. [[Category:Bird Anatomy]] Uploaded with derivativeFX
The furcula (Latin for "little fork"; pl.: furculae) [a] or wishbone is a forked bone found in most birds and some species of non-avian dinosaurs, and is formed by the fusion of the two clavicles. [1] In birds, its primary function is in the strengthening of the thoracic skeleton to withstand the rigors of flight.
Piers Fearick’s picture of a yellowhammer claimed the first prize in the wildlife category of the South Downs National Park’s annual competition.
Most birds have four toes, typically three facing forward and one pointing backward. [7] [10] [8] In a typical perching bird, they consist respectively of 3, 4, 5 and 2 phalanges. [2] Some birds, like the sanderling, have only the forward-facing toes; these are called tridactyl feet while the ostrich have only two toes (didactyl feet).
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There are three bones of the os coxae (hip bone) that come together to form the acetabulum. Contributing a little more than two-fifths of the structure is the ischium, which provides lower and side boundaries to the acetabulum. The ilium forms the upper boundary, providing a little less than two-fifths of the structure of the acetabulum.