Fluke

Posted by baobab (Cambridge, United States) on 30 September 2008 in Animal & Insect.

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orcas have a sophisticated culture, family structure and communication methods. transient orcas tend to be less vocal than resident (fish-eating) orcas because the marine mammals that are their prey are able to hear the orcas' voices. they do make use of lobtailing or tail slapping, and a couple of members of the crowd we were watching demonstrated this by beating the water with dramatically loud splashes of their tail flukes.

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