Researchers debate why orcas are attacking and sinking boats

Scientists and researchers are looking at a string of incidents reported after orcas appeared to attack and sink sailing vessels. Biologist and wildlife conservationist Jeff Corwin theorized these attacks are due to “rambunctious“ or “playful behavior“ or the animal could be coping after “a traumatic event.“ » Subscribe to NBC News: » Watch more NBC video: NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features , , , Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC News Shows. Connect with NBC News Online! NBC News App: Breaking News Alerts: Visit : Find NBC News on Facebook: Follow NBC News on Twitter: Get more of NBC News delivered to your inbox: #NBCNews #Orca #Whale