The baculum (also known as a penis bone) is a bone found in the penis of many placental mammals. It is absent in the human penis, but present in the penises of other primates, such as the gorilla and chimpanzee. All skulls vary in size and shape. You will receive a high quality specimen of the selected item but not the exact one pictured. All skulls, bones and other animal parts are guaranteed to be top quality; sourced from ethical vendors around the world.