SYDNEY — A group of killer whales have been documented blowing a sunfish to bits in an unusual underwater escapade offering never-before-seen insights into orca behavior, according to research released Thursday. Video released by the US-based NGO Beneath The Waves shows one orca holding the tail of a sunfish, with its fellow whale then charging with full force into the rotund mola, which explodes into pieces. The sunfish is already dead — this isn’t an elaborate murder ritual. READ: Killer whales spotted grooming each other with seaweed Instead, it might be an attempt to turn the fish into smaller bite-sized […]...Keep on reading: Killer whales: orcas blow fish to bits 'for fun', study finds