An article (more comprehensive) for those preferring to avoid linked video lecture: https://everwideningcircles.com/2018/10/28/sperm-whales-clicks-go-right-thr

An article (more comprehensive) for those preferring to avoid linked video lecture: https://everwideningcircles.com/2018/10/28/sperm-whales-clicks-go-right-through-us/ https://everwideningcircles.com/2018/10/28/sperm-whales-clic... I would have posted the article as the main link, but chose the video lecture for its title, seemingly more fit for HN.