Nisshin Maru
On 20 February 2013, the Japanese whaling ship "Nisshin Maru" rammed "Bob Barker", , "Steve Irwin" and "Sun Laurel" multiple times in a confrontation in the Southern Ocean, north of Australia's Casey Research Station in Antarctica. "Bob Barker" was hit on the stern, with "Nisshin Maru"s bow knocking down several of "Bob Barker"s antennas. "Bob Barker" issued a mayday after losing power.