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Baboon bosses get stressed for success

Alpha males incur a surprising level of strain

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1:52pm, July 14, 2011

Baboon males fight ferociously for power, only to have that power bite back.

Top-ranking males generate surprisingly high levels of stress hormones, a sign that these primates pay a cost to be the boss, report evolutionary biologist Laurence Gesquiere of Princeton University and her colleagues in the July 15 Science.

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