As you can probably imagine, porcupine mating season can be hazardous, but it’s also a bit gross. First of all, when a female porcupine is ready to mate, she signals this by secreting a thick substance of mucus mixed with urine. This gets the attention of male porcupines, who then show up in droves and fight for the right to mate with their female, quills flying. When a victor emerges, he approaches the female porcupine and sprays her with his urine. After that, however, the mating ritual is quite smooth, with both beavers holding their quills flat to avoid hurting each other. Take away the brutal fighting and the various secretions, and it would really be quite sweet.