Ever had a morning boner? Did you ever want to bone someone? Even though we might use the modern slang word ‘bone’ in reference to ***, the human ***** contains absolutely zero bones. This fact is also true for to a number of other animals such as donkeys, whales, rhinos, dolphins, horses and elephants.

This is not entirely true for the rest of the animal kingdom though as most mammals have a bone in their reproductive organs. For the sake of ‘stiffness’, having a bone in the ***** is essential for penetration and delivering sperm during ***. In fact, most animals have this feat and the fancy name for this bone is the baculum. These ***** sizes vary size thanks to different bone structures and the largest one recorded till date belongs to a type of walrus and was measured in at more than four feet. 

An evolutionary study was published by Matilda Brindle and Christopher Opie, recently, which analysed the anatomy and mating tendencies of thousands of mammals. According to the researchers, humans lost their baculum i.e. the bone in the *****, due to our habitual love for fast fucking and relatively no competition.

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According to the study, primates were engaged in prolonged intromission, in other words, fucked for longer than 3 minutes. In order to have a steady erection and *** sessions that can last for hours, it is necessary for the baculum to be present in male reproductive organs. According to Brindle, the ***** acts a supportive rod and also protects the urethra while keeping it open. “Species in which multiple males and females mate with one another tend to have longer bacula, suggesting it plays an important role in post-copulatory competition,” Brindle says.

Since humans have not partaken in gangbanging as a species for over 100 million years, researchers says that this was the reason behind the absence of ***** bones. Evolution is a funny concept and another factor why the bone disappeared was simply because of pain. The absence of the bone meant that there one less bone for a man to break, which is a potentially catastrophic injury.