You're supposed to name them. Last year, I passed "Roxy" (a dead fox) every day for 4 weeks and got to watch her various states of decay. This year, I saw "Pancake" (an unlucky cat) every day for 2 months before a street sweeper finally cleaned her up. In the end, she had been run over so many times, I almost renamed her "Crepe". For the past week, I've ridden past "Possy", the dead opossum. You get the idea...