About 140 people have been killed in bear attacks in North America since 1950, according to data available at data.world and Wikipedia. In the wild, more attacks occur in fall than in spring, but summer berry season is another peak time for human-bear encounters in some regions, wildlife experts say.
Attacks most often occur when hikers, hunters, and campers encroach on bears' wilderness habitats. While rare overall, most wilderness attacks occur when only one or two people are in the vicinity.
Several fatal attacks have been by bears held captive by animal trainers, in zoos, carnivals, or kept as pets. Here is a breakdown: