se7enW
Back to Why
❓ why

Why Do Whales Sing?

Marine BiologyZoology

Quick Answer

Humpback whale songs are produced by males during breeding season, likely to attract mates, establish dominance, and communicate across vast ocean distances.

The Full Story

Humpback whale songs are among the most complex vocalisations in the animal kingdom — structured sequences of moans, cries, and chirps lasting 10-20 minutes, repeated for hours. Only males sing, primarily during breeding season, suggesting a role in mate attraction or male-male competition. Remarkably, all males in a population sing the same song, which gradually evolves over the season; songs are culturally transmitted, with new versions sometimes spreading from one ocean basin to another. Low-frequency components (down to 20 Hz) can travel thousands of kilometres through water. Blue whales produce calls as low as 14 Hz at up to 188 decibels, making them the loudest animals on Earth. Tragically, increasing ocean noise from shipping, sonar, and seismic surveys is making it harder for whales to communicate.

Key Facts

1.A humpback whale song can last 10-20 minutes and be repeated for hours; the longest recorded singing session lasted over 24 hours.
2.Blue whale vocalisations at 188 decibels are louder than a jet engine (140 dB) and can be detected by other blue whales over 1,600 km away.
3.Humpback whale songs evolve culturally — a new song introduced in eastern Australia was picked up by populations across the South Pacific over just two years.

YouTube Angle

Suggested video title for this topic:

"Why Do Whales Sing? — The Mystery of Ocean Music"