Selfie gapers: Scientists have recently documented a strange behavior called "gaping," where humpback whales widely open their mouths for long periods without eating. It is believed they do this to stretch their massive jaws or to use the shape of their open mouths as a visual communication signal.
Selfie gapers: Scientists have recently documented a strange behavior called "gaping," where humpback whales widely open their mouths for long periods without eating. It is believed they do this to stretch their massive jaws or to use the shape of their open mouths as a visual communication signal.
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