Marine biologists have discovered that some of the Gulf’s common bottlenose dolphins are decapitating marine catfish. The behavior—which apparently allows them to avoid the catfish’s skull spines—seems to be exceptionally rare.

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Marine biologists have discovered that some of the Gulf’s common bottlenose dolphins are decapitating marine catfish. The behavior—which apparently allows them to avoid the catfish’s skull spines—seems to be exceptionally rare.