Whale Casualties By 13StarsManager - June 3, 2017 0 189 FacebookTwitterPinterestWhatsApp In March 2015, 337 Sei whales in Patagonia were casualties of the climate crisis. Prior to this stranding the largest baleen whale mass death was 14 and it occurred in 1987 at Cape Code, Mass. Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Like this:Like Loading... Related