The study published in Proceedings of the Royal Society B indicates that hungry humpback calves emit low-frequency vocalizations resembling burps, barks, and snorts to signal their need for milk.
These vocalizations are the first recorded instances of begging-like behavior in baleen whales, revealing an important communication aspect between mother and calf.
Despite humpback whales having a vast vocal repertoire, research had largely overlooked the interactions specifically between calves and their mothers.
The insights from this study open up new avenues to understand the complex social behaviors of humpback whales beyond their well-known songs.
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