Eleventh penis to be glad is not yours:
Male fruit fly sperm contains a toxin designed to kill the sperm of other male fruit flies. Sounds pretty cool, right? WRONG. These same toxins over generations of evolution have become so strong, that they lower the lifespan of their female partners … sperm so toxic that they leave open rotting lesions in the female’s vagina. They can’t have sex without slowly killing their partner after fertilization. Good luck with falling in love and keeping your partner for very long. Bonus fact: Fruit fly sperm is 20 times longer than its body.
