长臂猿是6%的终生配偶制灵长类之一(图中一只雌猿正在为雄猿梳理)。
Gibbons are among the 6 percent of primates that mate for life (pictured, a female gibbon grooms a male).
不像其他的鱼类,它们是一夫一妻制并终生厮守。
Unlike most other fish, they are monogamous and mate for life.
它们实行终生配偶制,一般寿命为30年。
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