A rabbit is sunning himself outside his house when a fox comes along and tells him that he is going to eat him for lunch. The rabbit explains that the fox cannot eat him because he is working on his dissertation, the subject of which is the superiority of rabbits over foxes and wolves. The fox laughs, but the rabbit persuades him to come into his house and examine his dissertation with the understanding that if the fox did not agree that the title was correct, he could eat the rabbit for lunch. The fox follows the rabbit into the house and never emerges. A few hours later, the rabbit is sunning himself when a wolf comes by. The above scene repeats itself with the same result.Later in the afternoon a squirrel comes by and comments on the satisfied look on the rabbit's face. The rabbit explains that he has just completed his dissertation on the superiority of rabbits over foxes and wolves. The squirrel is skeptical but agrees to follow the rabbit into his house to examine the dissertation. In the house is a computer on which appears the completed dissertation. On the floor on one side of the room are the bones of a fox. On the other side, the bones of a wolf. In the corner sits a lion.
The rabbit smiles and says to the squirrel, "You know, it doesn't really matter what your research topic is, as long as you have the right advisor."