Abstract
AbstractIn agonistic encounters an oyanirami (Coreoperca kawamebari) displays laterally to a rival. The lateral pattern is thought to have a threatening effect, eliciting aggressive reactions. A conspicuous eye‐like spot near the real eye is a main component of the pattern and is almost a key stimulus releasing aggressive actions of rivals; it has been shown, however, that the position of the spot has no connection with this effect. In the present study, video‐taped bites on two dummies were examined, one with the normal aggressive pattern and one with an artificial posterior‐spotted pattern. The natural eye‐like spots deflected attacks from the real eyes, but the artificial spots further from the real eyes did not. Only the nearby eye‐like spots can preserve the real eyes from rival attacks.
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