This is not kid-safe science, readers, so proceed accordingly. Also, if you are squeamish, it's probably not for you either. But if you have a healthy curiosity and interest in what could be deemed ultra S&M in the animal world, well, this article is most definitely for you.
Some female insects eat the males during and after mating. Some animals just expire, their purpose in life now fulfilled. Other species don't just mate - they viciously attack each other. Read on for tales that will make your own sad love stories seem like a fairy tale.