Leviticus 11:6:

6 the rabbit also, for though it chews cud, it does not divide the hoof, it is unclean to you;

Jews are said to abstain from the hare, disdaining it as a filthy and unclean animal, and yet was in the greatest esteem with the Romans of any four footed beast.

Moses is not the only writer that speaks of the hare as chewing the cud, Aristotle makes mention of the rabbit in common with those that do chew the cud, namely a "coagulum" or "runnet" in its stomach; his words are, ``all that have many bellies have what is called puetia, a coagulum or runnet, and of them that have but one belly, the hare;''

The "hare" in this verse may be an animal that now is extinct but was alive at the time of Moses. It is only other mentioned in Deut 14:7. There is no contradiction here.