Can cats and dogs coexist peacefully? This may be one of man's biggest conundrums. Dogs, according to most all cartoons, are supposed to chase cats and cats are, in return, expected to spit, hiss, and claw them. Well, if you get a new dog or cat and introduce them to the older, established one without taking the time to make slow, peaceful introductions you may see some bad results. Here are some tips to make smooth transitions into each other's lives.