We published a new article about cannibalism in bears across the globe: https://bioone.org/journals/ursus/volume-2022/issue-33e10/URSUS-D-20-00031.2/Cannibalism-in-bears/10.2192/URSUS-D-20-00031.2.short
We reviewed nearly 200 documented cases of cannibalism in bears and found it occurs in only four of the eight species, with polar bears making up more than half the reports. Most cases were tied to infanticide or fights between males, showing that cannibalism is often opportunistic rather than a specialized survival strategy.
