Livestream cameras set up in the Alaska National Park system usually catch a few bears, maybe some birds. Recently, however, a lightly viewed livestream on Dumpling Mountain showed a hiker who mouthed the words, “Help Me.” People watching contacted park rangers and in a few hours they were able to find a hiker who had been reported missing.

Source: https://www.npr.org/2023/09/12/1198751635/alaska-hiker-fat-bear-week-katmai