Highly socialised sperm whales taught each other to avoid harpoons, new study finds 

According to a historical study, sperm whales went through a 'cultural evolution' after they found themselves under siege by whalers' harpoons in the 19th century. https://www.dailymail.co.uk/news/article-9370291/Highly-socialised-sperm-whales-taught-avoid-harpoons-new-study-finds.html?ns_mchannel=rss&ns_campaign=1490&ito=1490