Six environmental groups filed an endangered species petition today to protect the Northern Rockies Fisher.
The predator of porcupines and snowshoe hares is a member of the weasel family, and lives in the forests of Montana and northern Idaho.
These groups sent the petition to the U.S. Fish and Wildlife Service, designating the animal as a threatened species.
One petition similar to this was rejected in 2011 after wildlife officials determined that traps and residential development did not threaten the population.
Ninety days have been set for the Fish and Wildlife Service to determine if the petition is of merit.