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Cuttlefish do not bluff in battle

DWhatley

Kraken
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Cuttlefish do not bluff in battle
physics.org study summary 2016

... In the field, Schnell's team observed how males gradually progress from the initial low-risk visual signalling stage to the high-risk one, which entails actual physical aggression. Low-risk behavior is typically performed at a distance of more than a meter away, and seldom stimulates physical aggression in an opponent. ...
 

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