National Geographic: Whales talk. But what makes them stop talking?
Scientists have long known that the marine mammals use creaks, groans, growls, and buzzes to communicate with each other-often over long distances-to find food, and even for mothers to keep track of their calves.
But what happens when the watery echosphere of their communication is filled with a drumbeat of undersea booms?
To the dismay of some who study whales, they may soon find out. The Obama administration this month gave the go-ahead for...