How penis bones help primates win the mating game – and why humans might have lost theirs

Friday 18th March 2022

How penis bones help primates win the mating game
One of the most weird and wonderful products of evolution is the penis bone, or baculum. The baculum is an extra-skeletal bone, which means it is not attached to the rest of the skeleton but instead floats daintily at the end of the penis. Depending on the animal, bacula range in size from under a millimetre to nearly a metre long, and in shape, varying from needle-like spines to fork like prongs.Penis bones

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Richard Freeman
Richard Freeman has been the zoological director of the Centre for Fortean Zoology since 1997, and has authored a number of books on the subject of Cryptozoology. He has carried out many major expeditions in search of mystery animals. He also writes fiction.