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 Promise Ring The Promise Ring announced they would be releasing a rarities collection in the summer of 2012 on former (and reunited) manager Jeff Castelaz's record label, Dangerbird Records. As of October 2015, the collection has not been released. On January 18, 2012, The Promise Ring announced they would perform at the 2012 Bamboozle Festival in Asbury Park, New Jersey with Foo Fighters, Blink-182, jimmy Eat World, and others. The band played what seemed to have been their final reunion performance at the Fun Fun Fun Fest in Austin on November 4, 2012. As of October 2015, The Promise Ring is active