Are all males liars and cheaters? Yes -- if they're crayfish!

Intimidation and threats are common throughout society, whether it’s in the school playground, sporting arena or boardroom. Threatening behaviour is equally widespread among non-human animals. Individuals signal their superior strength to competitors to obtain food, resolve territorial disputes and acquire mates.

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<p><a href="http://www.physorg.com/news94724728.html">Are all males liars and cheaters? Yes -- if they're crayfish!</a></p> <p>Intimidation and threats are common throughout society, whether it’s in the school playground, sporting arena or boardroom. Threatening behaviour is equally widespread among non-human animals. Individuals signal their superior strength to competitors to obtain food, resolve territorial disputes and acquire mates.</p>