Articles and Stories

May 5, 2026

At World Translation Center, we deal with a lot of languages. Sperm whale is not one of them. At least not yet. But recent research is starting to make that idea feel a little less unrealistic than it once did.

For years, scientists have known that sperm whales communicate using short bursts of clicks, known as codas. These sounds are very different from the long, almost musical songs you hear from humpback whales. Sperm whales keep it short and rhythmic, almost like a quick back and forth conversation.

For a long time, researchers thought the meaning might be hidden in the timing of those clicks, something similar to Morse code. But newer studies are pointing in a different direction. Instead of timing, the key may lie in the frequency of the clicks themselves.

And that is where things start to get interesting.

Researchers at Project CETI have found that sperm whales seem to use different types of clicks that behave a bit like vowels in human speech. Not in a literal sense, of course, but close enough to make people take a second look. Some clicks resemble something like an “a” sound, others closer to an “i.” They can shift in pitch and even blend together in more complex ways.

That kind of variation is not what you would expect from a simple signaling system.

There is more. Different groups of whales appear to have their own patterns. You could almost think of them as regional accents. Anyone who has ever traveled knows how much accents can shape a language, so seeing something similar in whales raises some interesting questions.

A team from the University of California, Berkeley spent several years studying a small group of whales using underwater microphones. Over time, they started noticing consistent patterns. Not random noise, not repetition, but structure. Enough structure that it begins to look a little familiar if you study human speech.

The lead linguist on the project, Gašper Beguš, pointed out something worth thinking about. At first, whale sounds can feel completely foreign. But the more you listen, the more recognizable the patterns become. There is a kind of logic there, even if we do not fully understand it yet.

The study, published in Proceedings of the Royal Society B, does not go as far as saying whales have a language in the same way humans do. But it does make one thing clear. Their communication is far more complex than we once thought.

And when you consider that whales and humans share a common ancestor from around 90 million years ago, it starts to feel less like a coincidence and more like a clue.

We are still a long way from “translating” whale communication. But it is no longer just noise. There is something there. Something structured. Something intentional.

For now, it remains a mystery. But maybe not for long.