Dolphins and whales may appear to be totally alien to us. But with their mental ability, group communication and the recent discovery that dolphins have individual names, they are closer to us than we ever imagined.

This fascinating series goes deep under the waves in search of a new understanding of what it means to be a whale or dolphin. Underwater cameramen Doug Allan and Didier Noirot embark on a quest to film the most amazing stories of whales and dolphins across the ocean world.

Teaming up with the world’s top cetacean scientists, Allan and Noiroit uncover new insights into the lives of these extraordinary animals that will redefine how we see them forever.

Ocean Giants will be broadcast on Sunday, 18 November at 19:00 on BBC Knowledge, channel 184 on DStv.