Rogue orca pod wreaks havoc on boats off Spanish coast.

A group of killer whales attacked and severely damaged a sailboat off the coast of southern Spain, breaking its rudder and piercing the hull. This is the latest in a series of orca assaults on vessels on Spanish and Portuguese coasts. Scientists suspect young whales might imitate the behavior of a traumatized orca called White Gladis. The Atlantic Orca Working Group has reported 18 such interactions this month in the region. All killer whale populations are protected under the Marine Mammal Protection Act.