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 the Scottish Mountaineering Club ("SMC") as one of 34 Furths, which is a mountain above in elevation, and meets the other SMC criteria for a Munro (e.g. "sufficient separation"), but which is outside of (or "furth") Scotland; which is why The Bones is sometimes referred to as one of the 13 Irish Munros. The Bones' prominence qualifies it to meet the Arderin classification, and the British Isles Simm and Hewitt classifications. The Bones is not in the MountainViews Online Database, "100 Highest Irish Mountains", as the prominence threshold is over . The Bones The Bones (), at high, is the