We're from Northern Wisconsin, like, up in the NORTH north part of the state. My friend and I were walking on a trail when this big, black blob walked out in front of us. It had two short arms, two short legs, and had no head... It could mimic voices perfectly, as well as growl and make other animalistic noises... Ant idea what it was?

Th person didn't tell me anything else, but I was wondering if this community had any idea what it could be.

Thank you for the help