• Polar bears sometimes bludgeon walruses to death with stones or ice https://www.sciencenews.org/article/polar-bears-bludgeon-walrus-stones-tools-ice-inuit/amp?__twitter_impression=true 8 comments 19/8/2021 science
• Polar bears sometimes bludgeon walruses to death with stones or ice https://www.sciencenews.org/article/polar-bears-bludgeon-walrus-stones-tools-ice-inuit 5 comments 29/7/2021 nature