[ **up: [[Generative organs]]** | [[Bones]]** ] --- # Baculum > The baculum … is a bone in the penis of many placental mammals. It is not present in humans, but is present in the penises of some primates, such as the gorilla and the chimpanzee.[^1] [^1]: ‘Baculum’, *Wikipedia*, last modified 9 March 2025, https://en.wikipedia.org/wiki/Baculum.