killer whales are considered a shiny species
the introduction of modern whaling techniques may have aided orcas by the sound of exploding harpoons indicating the availability of prey to scavenge and compressed air inflation of whale carcasses causing them to float thus exposing them to scavenging
 with sharks orcas may herd them to the surface and strike them with their tail flukes while bottomdwelling rays are cornered pinned to the ground and taken to the surface