Researchers tracking the decline of northern Minnesota's moose population have found wolves are to blame for some of the deaths.
State wildlife experts trapped 111 moose in January and February and placed GPS trackers and transmitters on the animals. The high-tech collars send satellite messages when a moose stops moving for six hours. The goal is to get crews to the dead moose quickly to harvest organs and tissue to find out what killed the animals.
Researchers say six of the 111 moose in the study have died and at least two appear to be victims of wolf attacks.
The Duluth News Tribune says the $1 million study has targeted moose in Lake and Cook counties.