Project CETI: What Would You Ask a Sperm Whale?

Author: Inna Horoshkina One

The Deep Archive is the archive of the future. Here they gather not knowledge about whales, but human questions for them. Perhaps, one day science will help us hear the answers.

We are accustomed to thinking of the ocean as speaking to us with the sound of waves, the cries of seagulls, and the songs of whales.

But perhaps the real conversation is happening much deeper.

Where humans have only recently heard chaotic clicks, modern science is beginning to discern patterns, structure, and possibly the first signs of complex communication.

The spring and summer of 2026 marked a significant milestone on this path.

Three studies, published by the international scientific initiative Project CETI (Cetacean Translation Initiative), have for the first time shown that the communication of Earth's largest toothed whales may be considerably more complex than was assumed just a few years ago.

Each study added a new note to this astonishing symphony.

First Note: A Sound That Proved More Complex

On April 15, 2026, a study by linguist Gašper Beguš from the University of California, Berkeley, and his colleagues from the international initiative Project CETI, including marine biologist Shane Gero and biologist David Gruber, was published in the journal Proceedings of the Royal Society B.

The scientists analyzed thousands of recordings of sperm whale vocalizations.

The main focus of the study was the famous codas—short rhythmic sequences of clicks that whales use to communicate with each other.

The results were unexpected.

The researchers discovered that these sequences possess phonological properties surprisingly similar to the organization of human speech.

Stable,

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Sources

  • Gašper Beguš - Publications

  • The phonology of sperm whale coda vowels

  • UC Berkeley and Project CETI study shows sperm whales communicate

  • Ученые выяснили, как кашалоты общаются при шуме судов

  • Кашалоты меняют речь при приближении судов

  • Биологи выяснили, что кашалоты меняют звуки при появлении кораблей

  • Кашалот Этвуд сломал шаблон учёных

  • Psychology Today: If We Could Talk to the Animals

  • Gašper Beguš LinkedIn

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