Researchers from Project CETI are using AI-enabled underwater gliders to identify a phonetic alphabet in sperm whale communication.
This development marks a significant shift in marine biology because traditional tagging methods cannot track whales that dive more than one kilometer deep [1]. By overcoming these depth and duration barriers, scientists can now analyze the structure of whale clicks and codas over extended periods to understand how these mammals communicate.
The project focuses on the deep waters of the North Atlantic Ocean, specifically off the coast of Germany. To capture this data, the team deployed buoyancy-controlled autonomous underwater gliders. These vehicles are designed to follow sperm whales for months at a time [2], providing a continuous stream of acoustic data that was previously impossible to collect.
Sperm whales utilize a complex system of clicks and codas to interact. The AI-powered gliders allow researchers to record these sounds in the whales' natural environment without the limitations of surface-dependent equipment. This long-term tracking is essential for decoding the specific phonetic patterns that make up the whales' communication system.
Project CETI, the Center for Emerging Technology and Innovation, said these research findings were reported in 2024 [2]. The use of buoyancy control allows the gliders to maintain a position relative to the whales, ensuring the sensors remain within range of the acoustic signals. This technology enables the team to map the frequency and rhythm of the clicks to determine if they function as a structured language.
The research highlights the intersection of artificial intelligence and marine science. By leveraging machine learning to process vast amounts of acoustic data, the team can isolate individual whale signatures and track the evolution of their vocalizations over several months [2].
“AI-enabled underwater gliders to identify a phonetic alphabet in sperm whale communication.”
The ability to decode a non-human phonetic alphabet suggests that sperm whale communication is far more complex than previously understood. By using autonomous AI gliders to bridge the gap between the surface and the deep ocean, researchers are moving from simple observation to a structural understanding of marine linguistics, potentially redefining the scientific definition of language.
