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The bones in the wing are extremely light so that the bird can fly more easily. The hips consist of the pelvis, which includes three major bones: the ilium (top of the hip), ischium (sides of hip), and pubis (front of the hip). These are fused into one (the innominate bone). Innominate bones are evolutionary significant in that they allow birds ...
For example, in the long-tailed duck, the leg and wing bones are not pneumatic, in contrast with some of the other bones, while loons and puffins have even more massive skeletons with no aired bones. [ 15 ] [ 16 ] The flightless ostrich and emu have pneumatic femurs , and so far this is the only known pneumatic bone in these birds [ 17 ] except ...
The English name "puffin" – puffed in the sense of swollen – was originally applied to the fatty, salted meat of young birds of the unrelated Manx shearwater (Puffinus puffinus), formerly known as the "Manks puffin". [2] Puffin is an Anglo-Norman word (Middle English pophyn or poffin) for the cured carcasses of nestling Manx shearwaters. [3]
A gull's upper mandible can flex upwards because it is supported by small bones which can move slightly backwards and forwards. The upper mandible is supported by a three-pronged bone called the intermaxillary. The upper prong of this bone is embedded into the forehead, while the two lower prongs attach to the sides of the skull. At the base of ...
The skeleton consists of very lightweight bones. They have large air-filled cavities (called pneumatic cavities) which connect with the respiratory system. [78] The skull bones in adults are fused and do not show cranial sutures. [79] The orbital cavities that house the eyeballs are large and separated from each other by a bony septum (partition).
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.
Puffinus is a Neo-Latin loanword based on the English "puffin". The original Latin term for shearwaters was usually the catchall name for sea-birds, mergus. [8] "Puffin" and its variants, such as poffin, pophyn and puffing, [9] referred to the cured carcass of the fat nestling of the shearwater, a former delicacy. [10]
The bones of three fingers are preserved in the bird wing. The question of which fingers they are has been discussed for about 150 years, and an extensive literature is devoted to it. [ 2 ] [ 3 ] The anatomical, paleontological, and molecular data suggests that these are fingers 1–3, but embryological data suggests that these are actually ...