What is Baculum?
The '''baculum''' (also '''penis bone'''), is a bone found in the penis of many male [[mammals]]. It is absent in the human [[penis]], but present in the penises of our close relatives the [[Ape|apes]], such as the [[gorilla]] and [[chimpanzee]]. The bone is located along the top of the penis and it aids in sex by keeping it stiff for a long time during the [[sex]] act. A bone in the penis allows a male to mate for a much longer time with a female. This can be an advantage as it prevents a rival male from having sex with the female for some time. Male animals without a penis bone tend to form close emotional bonds with a female and so ensure they are the father of her offspring. == References == [https://www.theguardian.com/science/2018/jan/24/cloacae-sex-arms-and-penis-bones-the-tricky-art-of-fossil-sexing How do you Sex a fossil? The Guardian Wed 24 Jan 2018] [[Category:Reproductive system]]