The penises of human ancestors were covered in hard spines. Theorists believe these spines possibly helped a man’s sperm overtake that of his competitors. As humans became more monogamous, the spines became obsolete.
Whoa. This one ought to be good for a couple of jokes.
https://www.nature.com/news/2011/110309/full/news.2011.148.html
Humans ditched DNA to evolve smooth penises and bigger brains.
Look at the similarity between our evolution fact for today and the interesting fact about earth:
No wonder the cavemen had to use clubs to get a little action !
You are the best with your hilarous 1 liners carl!