Attention, Cows: Please Speak Into the Microphone - “These ultra-hi-fi recordings have helped reveal that the meaning of animal language is often generated not by the sounds themselves but rather by the way those sounds are modulated. A second of whale song, for example, contains thousands of Morse-code-like beats that whales use to communicate. And many birds seem to have a vocabulary of basically one call, which takes on different meanings based on its frequency or volume.”