For 2 days, a woman in Polk County, Wisconsin heard strange animal noises from behind her home. She eventually summoned the police, who discovered two bear cubs trapped in a hollow tree (warning: auto-start). They had apparently climbed in through the top into the hollow trunk, then found themselves unable to escape. One had lodged his head in a hole.
Rescue workers cut windows into the tree trunk, which gave the bears enough room to escape.
The bears were dehydrated, so the rescuers fed them watermelon, which the bears ate eagerly. Once they could escape, the two cubs fled to the woods as quickly as they could.