10 Unsettling Things About the Ocean That Still Puzzle Us

4. The Singing of the Whales
Whales, the giants of the ocean, communicate using complex sounds that can travel for hundreds of miles underwater. The purpose and full meaning of these sounds, especially the haunting "songs" of the humpback whales, are still not fully understood. These vocalizations play a crucial role in whales' social structures and mating behaviors, but their complexity suggests we have only scratched the surface of understanding their communication.