"In particular, the common belief that surprising a mother bear with cubs is the most dangerous kind of black bear encounter is inaccurate," Herrero said. "Instead, lone male black bears hunting people as a potential source of food are a greater cause of deadly maulings and related predatory attempts."
https://www.adn.com/alaska-news/article/lone-predatory-black-bears-responsible-most-human-attacks/2011/05/11/
https://www.adn.com/alaska-news/article/lone-predatory-black-bears-responsible-most-human-attacks/2011/05/11/