Some species of baleen whales avoid attracting killer whales by singing too low to be heard

ScienceDaily
Feb 6, 2025, 6:37 pm158 ptsTrending
New research finds some baleen whale species call at such deep frequencies that they're completely undetectable by killer whales, which cannot hear sounds below 100 hertz. These also tend to be the species of baleen whales that flee in the face of attack from killer whales.

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