![Men DID have a penis bone - but lost it 1.9million years ago because sex lasted just 2mins | Science | News | Express.co.uk Men DID have a penis bone - but lost it 1.9million years ago because sex lasted just 2mins | Science | News | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/151/590x/Penis-bone-743898.jpg)
Men DID have a penis bone - but lost it 1.9million years ago because sex lasted just 2mins | Science | News | Express.co.uk
![Amy W Schwartz on Twitter: "So many articulations don't add the baculum, that lots of people don't even realise animals have them! (I think it's a bit strange to leave it off?!) Amy W Schwartz on Twitter: "So many articulations don't add the baculum, that lots of people don't even realise animals have them! (I think it's a bit strange to leave it off?!)](https://pbs.twimg.com/media/EFFEILkXYAEQYYw.jpg)
Amy W Schwartz on Twitter: "So many articulations don't add the baculum, that lots of people don't even realise animals have them! (I think it's a bit strange to leave it off?!)
![Humans have no penis bone because sex doesn't last long enough, scientists discover | The Independent | The Independent Humans have no penis bone because sex doesn't last long enough, scientists discover | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2016/12/14/09/pelvis.jpg?width=1200)