Humpback whales change their songs

By John von Radowitz
Updated November 21 2018 - 3:01pm, first published 2:59pm
Research shows male humpback whale groups change their anthem songs over the years.
Research shows male humpback whale groups change their anthem songs over the years.

Populations of male humpback whales undergo a "cultural revolution" every few years when they change their song anthem, research has shown.

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