Researchers observing female Barbary macaques found that "middle hierarchy" monkeys experienced the most stress.

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Stephen Worthington of Barbary Coast Capital Management sees trouble brewing on the balance sheet of PacifiCare Health Systems.

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Researchers in Liverpool and Manchester observed female Barbary macaques for almost 600 hours, recording all incidences of social behaviour.

BBC: Monkey study helps explain stress of 'middle managers'

For many generations, successive U.S. presidents have given those orders, from early in our Nation's history in places like Montezuma's palaces in Mexico to the Barbary pirates' shores of Tripoli, and more recently from the halls of Saddam Hussein to the pirate-infested coast of Somalia.

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