How Do Whales Talk to Each Other?

How the Sound is Produced

There are two types of whales: toothed and baleen. They differ not only because baleen whales are much bigger and use a baleen instead of teeth, but also they differ in the way they talk to each other. Toothed whales, such as dolphins, killer whales and sperm whales, produce sound through their blowholes. It is uncertain how a baleen whale produces sound--it has a different structure than the toothed whale. Scientists suspect that the baleen whale uses its larynx to communicate; however, the baleen whale has no vocal chords, so the exact method of sound production is uncertain.

Sounds From Toothed Whales

Toothed whales use sound both talk to each other but also to find their way around. The sound that a toothed whale uses to communicate is different from that used for echolocation, or bio-sonar. Whales use a series of clicks and whistles to communicate, but a single click is used for echolocation.

Sounds From Baleen Whales

Baleen whales include large species, such as the giant blue whale and humpback whale. Baleen whales communicate through moans, rumbles or thumps, and the sounds can travel for hundreds of miles. The baleen whale uses a lower-frequency sound (under 5,000 Hertz) than a toothed whale. Scientists believe that baleen whales do not use sound for echolocation.

The Song of the Male Humpback Whale

Male humpback whales are known for their whale songs. Their low, moaning songs can last up to 36 minutes. The humpback sings during mating season, so it may be used to attract a mate. It could also be used to challenge another male, announce location or to greet one another.