We quantified variation in fecal cortisol across reproductive periods in Azara's owl monkeys (Aotus azarae) to examine physiological mechanisms that may facilitate biparental care. Specifically, we evaluated evidence for the explanation that owl monkeys have hormonal mechanisms to mobilize energy during periods when each sex is investing heavily in reproduction, that is, the gestation period for females and the infant care period for males.

中文翻译：

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成对灵长类动物粪便皮质醇与双亲护理之间的关联

我们量化了阿扎拉猫头鹰猴 ( Aotus azarae )生殖期粪便皮质醇的变化，以研究可能促进双亲照顾的生理机制。具体来说，我们评估了解释猫头鹰猴子在雌性妊娠期和雄性育婴期的雌性妊娠期和雄性育婴期期间每个性别都大力投资繁殖期间具有动员能量的激素机制的证据。