"Little by little, the sperm whales are divulging their secrets of how they're communicating to us," one expert says. Any scientist will tell you that sperm whales are long-lived, highly intelligent, ...

Sperm whales rattle off pulses of clicks while swimming together, raising the possibility that they’re communicating in a complex language. Credit...Amanda Cotton Supported by By Carl Zimmer Ever ...

Sperm whales have a lot to say. The animals spend much of their lives in darkness, searching the ocean's depths for giant squid. So sound rules their world, especially in their tight-knit family ...