What kind of noise does a blue whale make?
Blue whales mostly emit very loud, highly structured, repetitive low-frequency rumbling sounds that can travel for many miles underwater. These songs may be used for communicating with other blue whales, especially in order to attract and find mates.
Blue whales make different sounds, depending on what they are doing. They make sounds to communicate, locate food and find each other. The noises that Blue whales make are a mix of grunts, pulses, groans and moans, that are typically in the 15-40 Hz range, often below the threshold of human hearing.