The article was powered by Yahoo Scout, which uses AI to generate key points from the article, which may not always match what's in the article but may help improve the user experience. The article discusses how bears are not typically aggressive towards people, but they typically only chase them when they feel threatened or their cubs' lives are in danger. The video above shows a scene where several grown men are trying to capture a bear on the roof of a shed or house, but the bear jumps up the side of the house and runs across it, chasing them all over the edge. There are eight species of bear species, with the smallest weighing 60 to 130 pounds, and the largest weighing 600 to 1,400 pounds.