Fish use gestures to help hunting partners find prey

04/30/2013 | LiveScience.com

Coral trout and grouper fish, which hunt with other animals, often use gestures, or sign language, to help each other uncover prey. Researchers, in a study published last week in the journal Nature Communications, found that the fish would use their heads to point out hiding prey to their hunting partners. Researchers believe the behavior developed out of necessity and perhaps not intelligence.

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