The ocean holds secrets we're only beginning to understand. Beneath the surface, endangered whales navigate an increasingly hostile environment filled with ship noise, pollution, and disappearing food ...

For decades scientists have been intrigued by the variety of sounds emitted by sperm whales, partly due to a popular theory that suggests that the sounds might contain information about the animals' ...

How scientists use underwater recordings to locate, identify, and understand some of the planet’s most enigmatic cetaceans, which rarely appear at the surface ...