The bible says that ever creature that divides the hoof and chews the cud is clean and than it mentions a certain type of rabbit which divides the hoof but does not chew the cud and a pig which chews the cud but does not divide the hoof and says both are unclean creatures for you to eat.
To me the rabbit symbolizes a female or male charmer who acknowledges the value and importance of others but is not willing to sacrifice themselves for the purposes of God or the law of justice, these people are jobless entertainers or childless House wives who are kind and respectful but lack humility and ambition.
The pig on the other hand, symbolizes a dominant social figure who is highly intelligent and self-indulgent, hoarding social and material resources in its greed and desire for control. The pig is sacrificial, humble, ambitious and productive, but does not see importance or value in the lives and welfare of others. While the hare did not acknowledge ambition and duty, the pig does not acknowledge inclusivity and generosity.
So to be clean, or acceptable you must divide the hoof and chew the cud, meaning, you must value and include others, and sacrifice and humble yourself before God, than God will acknowledge you as a student in good standing and not a student on intellectual probation.