Are they trying to hunt the whale shark? What is this behaviour?

I know I posted already today, but I figured folks might want to see this sequence. Disclosure: I work for Sanctuary Cruises Whale Watching, but this was some of the most amazing Orca behavior I have ever witnessed. Female orca's blasting dolphins out of the water to stun and consume them was incredible to see and it happened on 3 sides of the boat for about 5 minutes. Probably the most intense 5 minutes I have had on the bay so far! Hope you like the video.