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,
Ring the Alarm more successful on the US "Billboard" component charts. It topped the Dance Club Songs, Hot R&B/Hip-Hop Singles Sales and Hot 100 Singles Sales chart, and reached number three on the Hot R&B/Hip-Hop Songs. The song additionally charted at number twenty-one on the US Rhythmic and at number nineteen on the US Pop 100. Though not released outside the United States, "Ring the Alarm" charted at number fifty-seven on January 15, 2007, in Sweden. The music video for "Ring the Alarm" was the second video of Knowles' to be directed by Sophie Muller, who worked on "Déjà Vu". The video was