Hip bone muscles. Monotremes and marsupials also possess a fourth pair of bones, the prepubes or "marsupial bones", which extend forward from the pubes, and help to support the abdominal muscles and, in marsupials, the pouch. In placental mammals, the pelvis as a whole is generally wider in females than in males, to allow for the birth of the young. The pelvic bones of cetaceans were formerly considered to be vestigial, but they are now known to play a role in sexual selection. Hip bone The hip bone (os coxa, innominate bone, pelvic bone or coxal bone) is a large flat bone,
The Bones "Beenkeragh Ridge" is considered as "intimidating hill-walking conditions", along with the nearby The Big Gun ridge, and is often climbed as part of the "Coomloughra Horseshoe". The Bones is often confused with "The Bone", the north-west spur of the nearby Maolan Bui , MountainViews Online Database reported that to avoid confusion in rescue situations, the Kerry Mountain Rescue ("KMR"), and the Ordnance Survey Ireland ("OSI") advocated for the official name of The Bones to become Na Cnámha on OSI maps. The Bones is the 321st-highest mountain peak in Britain and Ireland on the Simm classification. The Bones is regarded by