Wolf families (or packs) maintain territories in which they hunt and live. Members of the pack take their territory very seriously – they’ll aggressively defend it from all non-pack members.

Without using geographical markers, as we do, how do wolves know where their territory begins and ends? Wolves will communicate the boundaries of their territory through territorial scent marking. By marking the boundaries with urine and feces, wolves are telling other wolf packs “no trespassing” – the area is already occupied!

When researchers from the Voyageurs Wolf Project charted the locations of six wolves from different northern Minnesota wolf packs throughout the summer, the findings reveal just how effective invisible fences can be!