Blue whales are the largest animals to ever live on earth, yet they are difficult to find or track. Even some of the locations where they birth their young are great secrets. Join some of the world’s eminent blue whale scientists as they embark on a revolutionary mission to identify and tag California blue whales as they migrate to a spot known as the Costa Rica Dome. This incredible voyage yields unforgettable new footage and insight into these amazing creatures’ lives.
The blue whale is the largest living creature on earth–and one of science’s biggest mysteries. While their colossal bodies might make them hard to miss, deep ocean waters shroud much of their activity. In this National Geographic documentary, scientists use DNA analysis, recordings of whale songs, homing devices, and sea dives to shed light on the blue whale’s breeding and birthing habits.