Rhythm of the Deep: Two-tier acoustic organization of sperm-whale codas from click waveforms to second-order sequence dependence
Researchers Mudit Sinha and Sanika Chavan discovered a two-tier acoustic organization in sperm-whale codas. Using frozen audio encoders, they found that individual click identities combine into "coda units" which exhibit second-order sequence dependence. This suggests a complex communication structure mirroring linguistic patterns, validated through a rigorous controlled-induction framework.