Orca's attacking boat sterns/rudders off Spain

[Englishman]

Uh oh! Seems a new learned behaviour is being exhibited by Orcas off the Atlantic coast of Spain and Gibraltar. They are ramming sterns and taking out rudders and disabling the boats. Let's hope they don't learn that trick here!
Check out the short video in this article as well.
https://www.theguardian.com/environ...-launch-orchestrated-attacks-on-sailing-boats