研究顯示，大型猿猴可能也有中年危機 Great apes may have mid-life crisis, a study suggests

Chimpanzees and orangutans may experience a "mid-life crisis" like humans, a study suggests.

研究顯示，黑猩猩與紅毛猩猩可能像人類一樣經歷「中年危機」。

An international team of researchers assessed the well-being and happiness of the great apes. They found well-being was high in youth, fell to a low in midlife and rose again in old age, similar to the "U-shape curve" of happiness in humans.

一個國際研究團隊評估這種大型猿類的幸福與快樂。他們發現年輕的黑猩猩幸福度高，步入中年時幸福度下滑，老年幸福度又重新上升，類似人類幸福度的「Ｕ型曲線」。

The sample subjects included 508 chimpanzees and orangutans of varying ages, from zoos, sanctuaries and research centres. They were assessed by zoo keepers, volunteers, researchers and caretakers who had worked with the primate subject for at least two years and knew its behaviour.

樣本包括508隻不同年齡層的黑猩猩與紅毛猩猩，分別來自動物園、保護區與研究中心。牠們由曾參與靈長類主題工作至少2年、了解靈長類行為的動物園管理員、志工、研究人員與照護者評估。

The animals were numerically scored for well-being and happiness on a short questionnaire, which was based on a human well-being model but modified for use in non-human primates.

這些動物的幸福與快樂以簡短的問卷評分，問卷是根據人類的幸福度模型，但修改為可供非人類的靈長類使用。

新聞辭典

varying：形容詞，不同的，多樣的。動詞為vary。例句：My taste in classical music varies greatly, but I usually prefer Mozart or Brahms.（我對古典音樂的喜好非常多樣，但我通常偏好莫札特或布拉姆斯。）

numerically：副詞，用數字表示地，形容詞為numerical。例句：Keep your files in numerical order.（用數字順序保管你的檔案。）

modify：動詞，修改。例句：Instead of simply punishing them, the system encourages offenders to modify their behaviour.（這個系統並非單純懲罰違規者，而是鼓勵他們改變行為。）