Sounds of the Blue Whale - California

The haunting calls of blue whales can travel across thousands of miles of ocean, and Wild Chronicles is on a mission to find out why these solitary giants are so talkative. For the first time ever, National Geographic's Crittercam® records both video and underwater sound of blue whales calling. The results reveal that these whales may not be so solitary after all — the calls could be about companionship.