The on again, off again controversial wolf hunt received more opposition when two national wildlife groups said they will sue to protect the animals, while two other groups have also asked the Minnesota Supreme Court to stop the state's first managed wolf that begins November 3, arguing that the lower court was wrong when it ruled last week that the killing of 400 wolves would not cause irreparable harm.

StarTribune.com is reporting that The Humane Society of the United States and The Fund for Animals served notice that they will file suit against the U.S. Fish and Wildlife Service.  However, the wait for that suit to be heard would allow the wolf hunt to take place this year.  Therefore, two other groups are making the appeal now to the Minnesota Supreme Court to stop this year's hunt.  Those groups are The Center for Biological Diversity and Howling for Wolves.

The gist of their argument is they would like to return the Great Lakes wolf to the endangered species list and that Minnesota failed to keep its promise to wait five years after removing them from that list before authorizing a hunt.