Dave Duffy felt a strong whack against his 42ft yacht at 3am and found a large orca ramming his rudder. He woke his wife and asked for help to steer the yacht which veered violently in the encounter.

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Gibraltar , Spain , Luke Rendell , Alfredo Lopez , White Gladis , Dave Duffy , Kim Duffy , Atlantic Orca Working Group , Poole College , University Of St Andrews , Mrs Duffy , Marine Mammal Science , Biological Conservation ,