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 Bones The Bones (), at high, is the seventh-highest peak in Ireland on the Arderin list, or the eighth-highest according to the Vandeleur-Lynam list. It is part of the MacGillycuddy's Reeks in County Kerry, and is a small sharp peak on the dramatic "Beenkeragh Ridge", and is sometimes mistaken with "The Bone", the north-east spur of Maolán Buí, which descends into the "Hag's Glen". The Bones is the highest point on a narrow rocky arête called the "Beenkeragh Ridge", situated between Carrauntoohil (Ireland's highest peak), and Beenkeragh (Ireland's second-highest peak), in the MacGillycuddy's Reeks range in County Kerry. The