What structure is a whales pelvic bone?

A whale's pelvic bone, or pelvis, is greatly reduced in size compared to that of land mammals. It typically consists of two small, inconspicuous bones that are not connected to the vertebral column and serve little to no function for locomotion. Instead, these vestigial structures are remnants from the evolutionary ancestors of whales that once walked on land. Their presence offers insight into the evolutionary history of cetaceans.