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,
Roll the Bones Roll the Bones Roll the Bones is the fourteenth studio album by Canadian rock band Rush, released on September 5, 1991 on Anthem Records. After touring their previous album "Presto", the band took a break before they started work on a follow-up in early 1991. "Roll the Bones" was a return to commercial success for the band, reaching No. 3 in the US, No. 10 in the UK, and No. 11 in Canada. Between 1991 and 1992, six songs from the album were released as singles. The album won a Juno Award for Best Album Design at the 1992 awards.