Latest research shows the humpback whales’ song to be a weapon used in verbal exchanges between bulls fighting over females. These battles can sometimes turn physical, sometimes endangering mothers with vulnerable calves.
| Directing | Rick Rosenthal | Director |
| Production | Rick Rosenthal | Producer |
| Production | Keith Scholey | Executive Producer |
| Production | Andy Byatt | Producer |
| Sound | Kate Hopkins | Sound Editor |
| Sound | Dave Ruddick | Sound Recordist |
| Camera | Rick Rosenthal | Director of Photography |
