Whale Song — The Ocean's Music
Megaptera novaeangliae
Quick Fact
Blue whale calls can travel thousands of kilometres through the ocean — making them the loudest animals on Earth, producing sounds up to 188 decibels.
About This Species
Humpback whale song is one of the most complex vocalisations produced by any animal. Male humpbacks sing elaborate songs lasting up to 20 minutes, which they repeat for hours. All males in a population sing the same song, which evolves gradually over time — a form of cultural transmission unique in the animal kingdom outside of humans. Blue whales produce the loudest sounds of any animal, audible across entire ocean basins. Whale song is used for mate attraction, navigation, and possibly long-distance communication.
Why It Matters
Ocean noise pollution from shipping, sonar, and industrial activity is drowning out whale communication, disrupting feeding, mating, and navigation. Quieter oceans are essential for whale survival.
Transcript
If you've ever heard a recording of humpback whale song, you'll understand why it stops people in their tracks. It's one of the most complex, haunting, and beautiful sounds produced by any animal on Earth. Male humpback whales sing elaborate songs that can last up to 20 minutes — and they repeat them for hours, sometimes days. Every male in a population sings the same song. And that song changes over time — new phrases are introduced, old ones dropped — in a process of cultural evolution that spreads across entire ocean basins. This is cultural transmission. The same phenomenon that allows human music to evolve. It's unique in the animal kingdom outside of humans. Blue whales produce the loudest sounds of any animal — calls reaching 188 decibels, audible across entire ocean basins. Sperm whales produce the most powerful biological sound source on Earth — clicks so intense they can stun prey. Whale communication is sophisticated, complex, and still poorly understood. We know that different populations have different dialects. We know that songs carry information about identity, fitness, and location. We're only beginning to understand the full picture. What we do know is that ocean noise pollution is drowning it out. Shipping traffic, military sonar, seismic surveys — the ocean is getting louder. Whales are having to call more loudly, change their frequencies, and in some cases, stop communicating altogether. We're not just threatening whale populations. We're silencing a conversation that has been going on for millions of years.