In humans the abuser is most often related to the child. The boobies however are attacking unrelated chicks.

人类的施虐这往往和孩子有亲缘关系，而鹈鹕攻击的则是没有关系的雏鸟。

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In humans, the abuser is most often related to the child. The boobies, however, are attacking unrelated chicks.

人类的施虐这往往和孩子有亲缘关系，而鹈鹕攻击的则是没有关系的雏鸟。

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To understand more about how this behavior arises in the boobies Anderson and his graduate students including first author Martina Muller collected data over three breeding seasons.

为了了解这种行为为什么会发生在鹈鹕当中，安德孙和他的研究生，包括论文的第一作者马提娜穆勒，搜集了三个繁殖季节的资料。

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Boobies often lay two eggs even though the parents can care for only one chick.

鹈鹕通常都是下两枚蛋，即便这样，父母也只能抚养其中的一只幼鸟。

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Boobies often lay two eggs, even though the parents can care for only one chick.

鹈鹕通常都是下两枚蛋，即便这样，父母也只能抚养其中的一只幼鸟。

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And amid the blue-footed boobies and giant tortoises sits a handful of towns whose population has tripled to nearly 30, 000 in the past two decades.

在蓝脚鲣鸟和巨龟中间坐落着几个城镇，其人口在过去二十年间已经增加三倍接近30 000人。

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And amid the blue-footed boobies and giant tortoises sits a handful of towns whose population has tripled to nearly 30,000 in the past two decades.

在蓝脚鲣鸟和巨龟中间坐落着几个城镇，其人口在过去二十年间已经增加三倍接近30 000人。

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And amid the blue-footed boobies and giant tortoises sits a handful of towns whose population has tripled to nearly 30,000 in the past two decades.

在蓝脚鲣鸟和巨龟中间坐落着几个城镇，其人口在过去二十年间已经增加三倍接近30 000人。

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