So Tomasello's Max Planck colleague primatologist Christophe Boesch looked for evidence of altruism in the wild.

所以，托马塞洛在麦克斯·普朗克的同事，灵长类动物学家克里斯托夫·伯施，就开始了在野外需找证据。

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Boesch says altruism may not show up as often in captivity because captive animals don't need to stick together to survive.

伯施说，利他主义行为在圈养环境下发生的并不那么频繁，因为圈养动物不需要只有抱成团才能生存下去。

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Between games, the Yankees optioned Boesch to Triple-A Scranton and recalled RHP Brett Marshall.

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Boesch sent a sharp two-out grounder to Arenado, who fielded it cleanly and came up throwing.

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New York OF Brennan Boesch received his AL championship ring in the clubhouse Sunday morning.

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