David Attenborough
Self
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.
Release Date | 1997-12-03 |
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Runtime | 46m |
Directors | Rick Rosenthal, Rick Rosenthal |
Producers | Rick Rosenthal, Keith Scholey, Andy Byatt |
Writer |